1966 Mercury Comet Engine Parts

Below you will find various in-demand Mercury Engine Parts, components and accessories for your 1966 Comet. Advance Auto Parts has popular Comet parts like Camshafts, Valve Cover and Cylinder Heads, Engine Gaskets and Seals and more. You’ll also find aftermarket and OEM Engine Parts for other Comet model years including 1968, 1969, 1971, 1972, 1973, 1974, 1975, 1976, 1977 and more. Select a category of 1966 Mercury Comet Engine Parts below and start saving instantly.

Popular 1966 Mercury Comet Engine Parts Categories

Valve Covers

Engine Valve Lifters

Valve Cover Gaskets

Engine Timing Chain Kits

Oil Pumps

Oil Pan Gaskets

OE Engine Oil Coolers

Rear Main Seal Sets

Cylinder Head Bolt Sets

Timing Covers

Harmonic Balancers

Timing Cover Gasket Sets

Cylinder Head Gasket Sets

Cylinder Head Gaskets

Engine Oil Pump Pickup Tube and Screens

Engine Complete Overhaul Gasket Sets

Rubber Freeze Plugs

Crankshaft Pulleys

Timing Cover Repair Sleeves

Oil Pump Shafts

Timing Cover Seals

Rocker Arms

Engine Valve Stem Seals

Piston and Liners

Camshafts

Oversized Main Bearings

Camshaft Bearings

Push Rods

Standard Rod Bearing Sets

Camshaft and Lifter Kits

Cylinder Head Bolts

Oil Pump Kits

Standard Piston Rings

Freeze Plug – Block Kits

Fuel Pump Flange Gaskets

Standard Individual Rod Bearings

Camshaft Plugs

Rocker Arm Nuts

Standard Single Pistons

Oil Pump Gasket and Seals

Timing Crank Gears

Expansion Plugs

Rocker Arm Bolts

Engine Oil Pump Cover Gaskets

Expansion Plug – Pipes

Fuel Pump Gaskets

Fuel Pump Bowl Gaskets

Engine Cylinder Head Plugs

Engine Valve Locks

Rocker Arm Shaft Plugs

Connecting Rod Bolts and Nuts

Engine Valve Seats

Cylinder Heads

Engine Assembly Lube

Engine Timing Cover Bolt Sets

Engine Oil Pump Primers

Essential Engine Parts for 1966 Mercury Comets

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$17.99

Along with the timing chain, tensioners, and guides, sprockets are an integral component within the timing system. Timing gears and sprockets are available as part of complete timing kits as well as for individual purchase and installation

Product Features:

Featuring precision-tooled or machined tooth form and precision-machined bore for true fit, timing chain sprockets offer reliability and dependability for engine rebuilds and typical replacement jobs
Recommended that the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced, as these components play a vital role in system stability and accurate timing
CAD designed and manufactured using premium materials
Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
Refer to our online catalog for detailed application-specific information

from

$65.99

Product Features:

Cylinder Head Gasket
1963-1996 289-302 (except boss)-351w; 1982-1996 5L

from

$479.99

Inside tang-to-taper relationship held tightly for repeatable valve spring installed heights

Product Features:

For simplicity, any Super Lock fits any COMP Cams 10° retainer – just choose the correct lock for you valve size and application
Super Locks are recommended in all race applications

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$18.99

Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

Product Features:

Application specific design to ensure a perfect fit
Meets or exceeds all original equipment specifications
Engineered and manufactured specifically for repair applications
Unsurpassed quality you can trust
Validated for fit, form, and function

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$1340.99

The Edelbrock #61625 Performer RPM cylinder head is designed for use with 351C, 351M & 400M Ford engine applications. The Edelbrock #61625 Performer RPM head is perfect for street performance, daily drivers, street rods and muscle cars where seat-of-the-p

Product Features:

Complete Single For Hydraulic Roller
60cc Combustion Chamber Volume
190cc Intake/90cc Exhaust Runner Volume
2.05 in. Intake/1.6 in. Exhaust Valve Diameter
0.625 in. Deck Thickness

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$74.99

Sealed Power« Vintage components provide coverage for applications over 35 years old, restoring classics with like new performance. Leading edge materials, ISO & QS certified manufacturing ensures performance and longevity for treasured engine rebuilds.

Product Features:

Steel-backed bronze alloy lining with overplate
Popular for fatigue resistance & strength – provides conformability required for older applications
State-of-the-art manufacturing
Exacting tolerances
Meets or exceeds OEM specifications

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$3.29

This engine expansion plug is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:

Direct replacement – this engine expansion plug matches the fit and function of the factory part on specified years, makes and models
Ideal solution – this plug is a reliable replacement for an original part that is missing or has failed due to fatigue
Durable construction – this part is made from quality materials to ensure reliable performance and long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

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$147.99

Billet Crank Sprocket Has Three Keyways for +/- 4 Degrees Adjustability. Both Sprockets Heat Treated for Durability. TRUE Roller 0.250″ Roller Diameter Chain for Reduced Friction. 3-Piece Sets Hand-Matched to Qualify the Correct Center Distance and Minimize Runout

Product Features:

The complete kits, which meet or exceed OEM performance requirements, ensure a quiet and maintenance-free experience
Cloyes parts are CAD designed and manufactured using premium materials. Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
Cloyes Timing Kits may include camshaft sprockets, crankshaft sprockets, timing chains, tensioners, and guides
Refer to our online catalog for detailed application-specific information
Keep your engine’s valve train in perfect time with Cloyes, the world leader in timing drive systems.

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$30.99

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust.

Product Features:

Conversion Sets (CS) provide every gasket for lower engine work – add a Head Set (HS) for complete engine overhaul work
Application specific design to ensure a perfect fit
Meets or exceeds all original equipment specifications
Validated for fit, form and function
Unsurpassed quality you can trust
Includes all the parts necessary to complete the repair unless otherwise noted
Includes all the parts necessary to complete the repair unless otherwise noted

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$9.79

Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

Product Features:

RIGHT TYPE – Valve stem seals designs are application-specific for the repair occasion using either deflector (umbrella) seals, O-ring style or positive seals
QUALITY MATERIALS – Each valve stem seal features materials based on the specific application for your vehicle repair
ENGINEERING EXPERTISE – Parts are reviewed, validated and approved by Fel-Pro engineers through rigorous research, development and testing
INSTALLATION AID – Installation tool included to protect inner lip of seal from damage during seal installation
COVERAGE – Available for domestic and foreign nameplate vehicles

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$111.99

Made in USA. Melling high volume oil pumps increase the amount of oil flow by an average of 20% through the engine improving oil pressure at idle providing dependable performance every time in every application. Every Melling high volume oil pump is engineered and assembled to the highest production standards from high quality materials. All Melling high volume oil pumps use the latest in gear and gerotor technology to provide the highest level of quality and performance. High volume gears are machined to close tolerances to ensure proper engine pressure and correct, efficient pump operation. End plates are precision ground for maximum wear resistance. Every Melling oil pump is individually tested for pressure and flow under conditions designed to duplicate actual engine operating conditions.

Product Features:

Manufactured from high quality materials for consistent durable wear
Precision engineered for optimum fit and function
Designed for long-life and worry-free performance
High volume oil pump supplies additional oil to engines when necessary for high performance applications or low oil pressure issues

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$22.99

DESIGNED FOR IMPERFECT SEALING SURFACES – Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
ENGINEERED TO PERFORM – Proprietary cork-rubber formulation
SUPERIOR SEAL – Highly conformable to accommodate for the imperfect sealing surfaces
EVERY PART FOR THE REPAIR – Fel-Pro gasket sets include every part needed for the repair unless otherwise noted
REAL WORLD TESTED – Parts are tested on-vehicle and validated to ensure optimal performance on the road

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$43.99

Sealed Power® parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:

Steel-backed Babbitt lining material
Used in automotive and high-performance
Babbitt is designed to perform under extreme loads w/o damaging other engine parts
Babbitt is more environmentally friendly than other material
ISO & QS certified manufacturing

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$5.49

This pipe plug matches the original equipment plug for diameter, thread pitch and head type to ensure a reliable repair. Made of corrosion-resistant material, it has been engineered for leak-free performance and a long service life.

Product Features:

Ideal replacement – this pipe plug matches the diameter, thread pitch and head type of the original equipment part
Durable construction – this plug is made of quality materials for dependable service
Leak-free performance – quality manufacturing process ensures a tight for reliable sealing
Quality tested – this plug has undergone validation testing to ensure proper fit and function for this vehicle’s application

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$355.99

Made In USA. Melling Engine Oil Priming Tank was developed as a way for engine builders to safely pre-prime the engine with oil prior to initial engine startup. The priming tank, when filled with clean oil and air pressure pumps oil into all of the critical areas of the new engine quickly and safely.

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$1.79

This engine connecting rod nut is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:

Direct replacement – this engine connecting rod nut matches the fit and function of the factory part on specified years, makes and models
Ideal solution – this nut is a reliable replacement for an original part that is missing or has failed due to fatigue
Durable construction – this part is made from quality materials to ensure reliable performance and long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

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$45.99

National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:

Designed to repair damaged, grooved or worn shafts
Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
Easy to install with removable flange and installation tool

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$0.72

Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

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$26.99

Application specific design to ensure a perfect fit
Meets or exceeds all original equipment specifications
Engineered and manufactured specifically for repair applications
Unsurpassed quality you can trust
Validated for fit, form, and function

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$151.99

Product Features:

Head: 4.400″ Bore/0.038″ Thick/9.90cc Vol.
Intake: 1.40″x2.10″ Port/.060″ Thick
Exhaust: 1.40″x2.04″ Port
3/16″ Valve Cover
Multi Piece Configuration

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$116.99

This direct replacement harmonic balancer features a stress-resistant rubber bond to properly absorb engine vibration. Stringent standards help ensure excellent tensile and impact strength for greater durability.

Product Features:

Ideal replacement – this harmonic balancer assembly exactly matches the fit and function of the original harmonic balancer for a direct replacement
Durable construction – stringent specifications and careful construction help ensure longevity
Thoroughly tested – this harmonic balancer has undergone dimensional verification, material validation and functional testing
Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience

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$80.99

PROPRIETARY COATING – Nonstick anti-friction coating seals small surface scratches and imperfections
SEALING TECHNOLOGIES – Exclusive sealing innovations and technologies with proprietary materials and unique design features to ensure a superior seal for your repair
NO RETORQUE DESIGN – Steel core helps eliminate the need for retorquing head bolts
STRONG AND DURABLE – Features graphite or reinforced fiber facing material and steel armor for strength and durability
DESIGNED FOR IMPERFECT SEALING SURFACES – Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces

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$78.99

The Edelbrock #4460 Signature Series Valve Covers are designed for Ford 260-289-302 (not Boss) and 351W V8 applications. Engineered for function and styled for great looks, Signature Series valve covers have stock-style breather baffles that prevent oil passage to the PCV valve. These quality valve covers accept all emissions equipment, including PCV valve holes. Rubber grommets for the breather and PCV valve holes are included. Matching breathers sold separately.

Product Features:

Small Block Ford 221-351W 62-95
Tall
Chrome Steel
Set Of Two
Rubber Grommets For Breather

from

$3.29

DESIGNED FOR IMPERFECT SEALING SURFACES – Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
SEALING TECHNOLOGIES – Exclusive sealing innovations and technologies with proprietary materials and unique design features to ensure a superior seal for your repair
ENGINEERING EXPERTISE – Parts are designed, reviewed, validated and approved by Fel-Pro engineers through rigorous research and development
REAL-WORLD TESTED – Parts are tested on-vehicle and validated to ensure optimal performance on the road
EVERY PART FOR THE REPAIR – Fel-Pro gasket sets include every part needed for the repair unless otherwise noted

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$40.49

Sealed Power parts provide innovative designs, use leading-edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

from

$2.99

With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.

Product Features:

Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.

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$17.99

A new Melling oil pump shaft is recommended to complete every new oil pump install. Melling offers a complete line of high quality shafts for domestic and import pump applications. A new oil pump shaft is necessary due to possible metal fatigue, cracking

Product Features:

Manufactured from high quality materials for consistent durable wear
Precision engineered for optimum fit and function
Designed for long-life and worry-free performance
Meets or exceeds original equipment specifications

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$8.49

Complete rocker arm assembly
1 Arm
1 Pivot
1 Arm
Utilizes ISO & QS certified manufacturing

Upgrade your 1966 Mercury Comet with Top-Quality Engine Parts

When it comes to maintaining or upgrading your 1966 Mercury Comet, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Mercury or enhancing its overall performance, Engine Parts are key to keeping your Comet functioning at its best. At Advance Auto Parts, we offer a wide selection of 319 Engine Parts for the 1966 Mercury Comet, designed to meet your needs without breaking the bank. From Camshaft replacements to Valve Cover and Cylinder Heads upgrades, we’ve got you covered with parts that fit your vehicle perfectly and ensure long-lasting performance.

Affordable Prices and Wide Selection

Shopping for Engine Parts for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Engine Parts for your 1966 Mercury Comet at great prices. Our Engine Parts inventory for this model ranges from just $0.30 to $1,838.99, with an average price of $90.04. Our 319 Engine Parts in stock come from 22 trusted brands, so you’re sure to find the right part for your 1966 Mercury Comet without overspending.

Top Brands and High Customer Satisfaction

Advance Auto Parts takes pride in offering only the best brands in the automotive industry. For your 1966 Mercury Comet, we stock popular OEM and aftermarket Engine Parts from top names like FELPRO, Sealed Power, Dorman, and more. FELPRO Engine Parts start at just $3.99 and boast an impressive 4.6 stars average rating from customers. Sealed Power and Dorman also bring quality to the table, with Engine Parts available starting at $0.43, and at an average 4.3 stars rating. With 360 customer reviews and counting, our 1966 Mercury Comet Engine Parts have a strong track record of reliability, ensuring you can trust your purchase.

Explore Related Parts and More

While you’re here, don’t forget to check out other essential categories that go hand in hand with Engine Part upgrades. Explore related part types like Batteries and Chargers, Oil and Lubricants and more to make sure your 1966 Mercury Comet is always ready to roll. We’re committed to providing you with everything you need to keep your Comet in top shape, all in one place. Start shopping confidently below for your 1966 Mercury Comet!

Best-Selling Camshafts for 1966 Mercury Comets

Enhance the driving experience in your Mercury with 12 quality Camshaft components, starting at $2.29.

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from

$450.99

Product Features:

Designed for 1500 to 6500 Performance
Maximum Power in High-RPM with Good Low-End Torque
Matched to Edelbrock Performer RPM Intakes
10 to 12 in. of Manifold Vacuum at Idle
More Lift and Duration than Most Street Camshafts
Includes Hydraulic Lifters and Assembly Lube
Dyno Matched/Street Proven Performance
Take The Guesswork Out Of Camshaft Selection

from

$43.99

Steel-backed Babbitt lining material
Used in automotive and high-performance
Babbitt is designed to perform under extreme loads w/o damaging other engine parts
Babbitt is more environmentally friendly than other material
ISO & QS certified manufacturing

from

$2.99

Direct replacement – this engine expansion plug matches the fit and function of the factory part on specified years, makes and models
Ideal solution – this plug is a reliable replacement for an original part that is missing or has failed due to fatigue
Durable construction – this part is made from quality materials to ensure reliable performance and long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

from

$46.99

Sealed Power® Vintage components provide coverage for applications over 35 years old, restoring classics with like new performance. Leading edge materials, ISO & QS certified manufacturing ensures performance and longevity for treasured engine rebuilds.

Product Features:

Steel-backed Babbitt lining material
Used in automotive and high-performance
Babbitt is designed to perform under extreme loads w/o damaging other engine parts
Babbitt is more environmentally friendly than other material
ISO & QS certified manufacturing

from

$3.49

Direct replacement – this engine expansion plug matches the fit and function of the factory part on specified years, makes and models
Ideal solution – this plug is a reliable replacement for an original part that is missing or has failed due to fatigue
Durable construction – this part is made from quality materials to ensure reliable performance and long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

from

$2.29

Direct replacement – this engine expansion plug matches the fit and function of the factory part on specified years, makes and models
Ideal solution – this plug is a reliable replacement for an original part that is missing or has failed due to fatigue
Durable construction – this part is made from quality materials to ensure reliable performance and long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

from

$3.29

Direct replacement – this engine expansion plug matches the fit and function of the factory part on specified years, makes and models
Ideal solution – this plug is a reliable replacement for an original part that is missing or has failed due to fatigue
Durable construction – this part is made from quality materials to ensure reliable performance and long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

from

$517.99

Designed for 1500-6500 performance. Maximum power in high-RPM with good low-end torque. Matched to Edelbrock performer RPM intakes. 10 to 12 inches of manifold vacuum at idle. More lift and duration than most street camshafts. Dyno matched and street proven performance. Take the guesswork out of camshaft selection! Use only stock ratio Rocker Arms.

Product Features:

Designed for 1500 to 6500 Performance
Maximum Power in High-RPM with Good Low-End Torque
Matched to Edelbrock Performer RPM Intakes
10 to 12 in. of Manifold Vacuum at Idle
More Lift and Duration than Most Street Camshafts
Dyno Matched/Street Proven Performance
Take The Guesswork Out Of Camshaft Selection
Use Only Stock Ratio Rocker Arms

from

$455.99

Product Features:

Designed for 1500 to 6500 Performance
Maximum Power in High-RPM with Good Low-End Torque
Matched to Edelbrock Performer RPM Intakes
10 to 12 in. of Manifold Vacuum at Idle
More Lift and Duration than Most Street Camshafts
Includes Hydraulic Lifters and Assembly Lube
Dyno Matched/Street Proven Performance
Take The Guesswork Out Of Camshaft Selection

from

$306.99

CAMSHAFTS

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$43.49

Product Features:

Brand may vary by location

from

$2.79

Direct replacement – this engine expansion plug matches the fit and function of the factory part on specified years, makes and models
Ideal solution – this plug is a reliable replacement for an original part that is missing or has failed due to fatigue
Durable construction – this part is made from quality materials to ensure reliable performance and long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

Most Popular 1966 Mercury Comet Valve Cover and Cylinder Heads

Customize your Mercury with 57 Valve Cover and Cylinder Heads products like Engine Valve Lifters, Cylinder Head Bolt Sets, and Cylinder Head Gaskets, all priced under $1,838.99.

show more show less

from

$11.99

Unsurpassed quality that you can trust
Uses leading edge materials
State-of-the-art manufacturing
Exacting tolerances
Meets or exceeds OEM specifications

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$35.99

PermaTorque head gaskets meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Requires no retorquing of the head bolts
Manufactured for the repair environment
Validated for fit, form, and function
Unsurpassed quality you can trust

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$0.43

Unsurpassed quality that you can trust
Uses leading edge materials
State-of-the-art manufacturing
Exacting tolerances
Meets or exceeds OEM specifications

from

$12.99

Unsurpassed quality that you can trust
Uses leading edge materials
State-of-the-art manufacturing
Exacting tolerances
Meets or exceeds OEM specifications

from

$35.99

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust.

Product Features:

Manufactured for the repair environment
Unsurpassed quality you can trust
Unsurpassed quality you can trust

from

$83.99

PROPRIETARY COATING – Nonstick anti-friction coating seals small surface scratches and imperfections
SEALING TECHNOLOGIES – Exclusive sealing innovations and technologies with proprietary materials and unique design features to ensure a superior seal for your repair
NO RETORQUE DESIGN – Steel core helps eliminate the need for retorquing head bolts
STRONG AND DURABLE – Features graphite or reinforced fiber facing material and steel armor for strength and durability
DESIGNED FOR IMPERFECT SEALING SURFACES – Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces

from

$8.99

Sealed Power Vintage parts provide coverage for applications over 35 years old, restoring classics with like-new performance. Leading-edge materials and ISO & QS certified manufacturing ensures performance and longevity for treasured engine rebuilds.

Product Features:

Complete rocker arm assembly
1 Arm
1 Ball
1 Nut
Utilizes ISO & QS certified manufacturing

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$0.72

from

$117.99

Complete kit includes retainers and locks. Springs made of highest quality spring wire. Springs precision wound to close tolerances. Includes superior quality steel retainers. Includes 7 degree heat-treated valve stem locks. Retainers and locks black oxide coated. Non-Rotator style: Dyno tested and street proven. Great match to Edelbrock camshaft kit.

Product Features:

For Use With Cast Iron Heads
Springs Made of Highest Quality Spring Wire
Springs Precision Wound To Close Tolerances
Use with Original Equipment Heads Only

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$4.29

Cylinder head bolt stripped or broken? This engine cylinder head bolt directly replaces the original bolt on specific vehicle years, makes and models.

Product Features:

Direct replacement – designed to match the fit and function of the original cylinder head bolt on certain vehicles
Corrosion resistant – withstands elements for reliable service life
Application specific – made to hold cylinder head in place on specific vehicles
Trustworthy quality – backed by team of engineers and inspectors in United States

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$2.99

from

$12.49

Complete rocker arm assembly
1 Arm
1 Ball
1 Nut
Utilizes ISO & QS certified manufacturing

from

$78.99

Small Block Ford 221-351W 62-95
Tall
Chrome Steel
Set Of Two
Rubber Grommets For Breather

from

$82.99

High Performance head bolts are available with a reduced wrenching hex or 12 point and wide area flanged head that eliminates the need for valve train removal to facilitate cylinder head retorquing. All High Performance Series bolts are 180,000 PSI (which is 15 Percent stronger than Grade 8) and kits come complete with hardened parallel ground washers.

Product Features:

High Performance Head Bolts Are Available With A Reduced Wrenching Hex Or 12 Point
Wide Area Flanged Head That Eliminates The Need For Valve Train Removal To Facilitate Cylinder Head Retorquing
Rated At 180,000 Psi Tensile Strength
High Performance Head Bolts Are Stronger

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$47.99

PROPRIETARY COATING – Nonstick anti-friction coating seals small surface scratches and imperfections
SEALING TECHNOLOGIES – Exclusive sealing innovations and technologies with proprietary materials and unique design features to ensure a superior seal for your repair
NO RETORQUE DESIGN – Steel core helps eliminate the need for retorquing head bolts
STRONG AND DURABLE – Features graphite or reinforced fiber facing material and steel armor for strength and durability
DESIGNED FOR IMPERFECT SEALING SURFACES – Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces

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$66.99

High Energy Pushrods from COMP Cams are an affordable, high quality solution when building street rods, RVs and daily drivers. High Energy Pushrods have a durable one-piece construction that meets or exceeds all OE pushrod specifications and fit perfectly with High Energy and Magnum Rocker Arms.

Product Features:

5/16″ diameter, 6.881″ length for Small Block Ford 255 and 302, ’65-up with Flat Tappet Cam
Best choice when building street rods, RVs or daily drivers
Meet or exceed all OE pushrod specifications
Mate perfectly with High Energy and Magnum Rockers
Durable one-piece construction

from

$479.99

Inside tang-to-taper relationship held tightly for repeatable valve spring installed heights

Product Features:

For simplicity, any Super Lock fits any COMP Cams 10° retainer – just choose the correct lock for you valve size and application
Super Locks are recommended in all race applications

from

$2.99

State-of-the-art manufacturing
Exceptional material quality
Exacting tolerances
Heat treated tips
Stock or mild modified replacement
Made in USA

from

$1.99

from

$90.99

The Edelbrock #4462 Signature Series Valve Covers are designed for Ford FE 332-352-360-390-406-410-427-428 V8 ’58-76 applications. Engineered for function and styled for great looks, Signature Series valve covers have stock-style breather baffles that prevent oil passage to the PCV valve. These quality valve covers accept all emissions equipment, including PCV valve holes. Rubber grommets for the breather and PCV valve holes are included. Matching breathers sold separately.

Product Features:

Ford FE V8 1958-76
Short
Chrome Steel
Set Of Two
Rubber Grommets For Breather

from

$126.99

Our unique Multi-Layered steel head gasket embossment formation process optimizes the embossment radius, reduces stress points, enhances gasket conformability, and provides uniform clamp load distribution. This all results in superior surface contact between block and cylinder head. All head gasket layers/spacers go through an additional process to significantly reduce forming induced stress. Advantages are reduced brittleness in material, increased flexibility and deformation retention. This stabilizes the gasket, resulting in reduced cylinder bore distortion and improved combustion seal fro the extreme cylinder pressures found in high compression, supercharged and turbocharged applications. A proprietary polymer coating ensures the micro-seal of engine coolant and oil fluids.brbrA typical MLS head gasket requires a smoother (30Ra) surface finish than composite head gaskets. Mr. Gasket’s proprietary polymer coating will seal a surface finish twice as rough (60Ra) as a typical MLS head gasket. For high performance street, drag race and oval track use.

Product Features:

Gasket bore – 4.030 inch: Compressed thickness – .040 inch
Manufactured from 3-layer premium grade stainless steel and state of the art laser cutting
Optimized sealing embossments seals extreme cylinder pressure
Provides excellent stability and reduces cylinder bore distortion.
Proprietary polymer coating ensures the micro seal of engine coolant and oil fluids.
Ideal for supercharged, turbocharged, nitrous oxide and extreme compression ratio engines
For high-performance street, drag race and oval track use

from

$479.99

Inside tang-to-taper relationship held tightly for repeatable valve spring installed heights

Product Features:

For simplicity, any Super Lock fits any COMP Cams 10° retainer – just choose the correct lock for you valve size and application
Super Locks are recommended in all race applications

from

$2.79

Direct replacement – this engine expansion plug matches the fit and function of the factory part on specified years, makes and models
Ideal solution – this plug is a reliable replacement for an original part that is missing or has failed due to fatigue
Durable construction – this part is made from quality materials to ensure reliable performance and long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

from

$1.79

Direct replacement – this engine expansion plug matches the fit and function of the factory part on specified years, makes and models
Ideal solution – this plug is a reliable replacement for an original part that is missing or has failed due to fatigue
Durable construction – this part is made from quality materials to ensure reliable performance and long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

Top Picks for 1966 Mercury Comet Engine Gaskets and Seals

Upgrade Mercury Comets with top-quality Engine Gaskets and Seals parts, including 34 OEM and aftermarket selections for your 1966 model.

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from

$3.99

Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Engineered and manufactured specifically for the repair environment
Unsurpassed quality you can trust
Includes all parts needed to complete the repair

from

$47.99

Product Features:

DESIGNED FOR IMPERFECT SEALING SURFACES – Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
STRONG AND DURABLE – Features molded rubber over a rigid carrier which resists high heat
SUPERIOR SEAL – Proprietary rubber sealing beads help eliminate potential leak paths for a superior seal
EASIER TO INSTALL – Locating tabs assure proper alignment and easier installation
PREVENTS OVERTIGHTENING – Torque limiters help eliminate overtightening and gasket splitting and extruding
EVERY PART FOR THE REPAIR – Fel-Pro gasket sets include every part needed for the repair unless otherwise noted
EVERY PART FOR THE REPAIR – Fel-Pro gasket sets include every part needed for the repair unless otherwise noted

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$52.99

DESIGNED FOR IMPERFECT SEALING SURFACES – Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
ENGINEERED TO PERFORM – Proprietary cork-rubber formulation
SUPERIOR SEAL – Highly conformable to accommodate for the imperfect sealing surfaces
EVERY PART FOR THE REPAIR – Fel-Pro gasket sets include every part needed for the repair unless otherwise noted
REAL WORLD TESTED – Parts are tested on-vehicle and validated to ensure optimal performance on the road

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$26.99

Timing cover set includes gaskets and seals necessary for timing chain/belt replacement job
Application specific design to ensure a perfect fit
Engineered and manufactured specifically for the repair environment
Unsurpassed quality you can trust
Validated for fit, form, and function

from

$26.99

DESIGNED FOR IMPERFECT SEALING SURFACES – Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
ENGINEERED TO PERFORM – Proprietary cork-rubber formulation
SUPERIOR SEAL – Highly conformable to accommodate for the imperfect sealing surfaces
EVERY PART FOR THE REPAIR – Fel-Pro gasket sets include every part needed for the repair unless otherwise noted
REAL WORLD TESTED – Parts are tested on-vehicle and validated to ensure optimal performance on the road

from

$26.99

DESIGNED FOR IMPERFECT SEALING SURFACES – Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
ENGINEERED TO PERFORM – Proprietary cork-rubber formulation
SUPERIOR SEAL – Highly conformable to accommodate for the imperfect sealing surfaces
EVERY PART FOR THE REPAIR – Fel-Pro gasket sets include every part needed for the repair unless otherwise noted
REAL WORLD TESTED – Parts are tested on-vehicle and validated to ensure optimal performance on the road

from

$3.29

DESIGNED FOR IMPERFECT SEALING SURFACES – Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
SEALING TECHNOLOGIES – Exclusive sealing innovations and technologies with proprietary materials and unique design features to ensure a superior seal for your repair
ENGINEERING EXPERTISE – Parts are designed, reviewed, validated and approved by Fel-Pro engineers through rigorous research and development
REAL-WORLD TESTED – Parts are tested on-vehicle and validated to ensure optimal performance on the road
EVERY PART FOR THE REPAIR – Fel-Pro gasket sets include every part needed for the repair unless otherwise noted

from

$94.99

Full Sets contain all the gaskets and seals necessary for a complete engine overhaul
Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Engineered for the sealing repair environment
Unsurpassed quality you can trust
Validated for fit, form, and function

from

$26.99

DESIGNED FOR IMPERFECT SEALING SURFACES – Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
ENGINEERED TO PERFORM – Proprietary cork-rubber formulation
SUPERIOR SEAL – Highly conformable to accommodate for the imperfect sealing surfaces
EVERY PART FOR THE REPAIR – Fel-Pro gasket sets include every part needed for the repair unless otherwise noted
REAL WORLD TESTED – Parts are tested on-vehicle and validated to ensure optimal performance on the road

from

$26.99

DESIGNED FOR IMPERFECT SEALING SURFACES – Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
ENGINEERED TO PERFORM – Proprietary cork-rubber formulation
SUPERIOR SEAL – Highly conformable to accommodate for the imperfect sealing surfaces
EVERY PART FOR THE REPAIR – Fel-Pro gasket sets include every part needed for the repair unless otherwise noted
REAL WORLD TESTED – Parts are tested on-vehicle and validated to ensure optimal performance on the road

from

$24.99

DESIGNED FOR IMPERFECT SEALING SURFACES – Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
ENGINEERED TO PERFORM – Proprietary cork-rubber formulation
SUPERIOR SEAL – Highly conformable to accommodate for the imperfect sealing surfaces
EVERY PART FOR THE REPAIR – Fel-Pro gasket sets include every part needed for the repair unless otherwise noted
REAL WORLD TESTED – Parts are tested on-vehicle and validated to ensure optimal performance on the road

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$9.79

RIGHT TYPE – Valve stem seals designs are application-specific for the repair occasion using either deflector (umbrella) seals, O-ring style or positive seals
QUALITY MATERIALS – Each valve stem seal features materials based on the specific application for your vehicle repair
ENGINEERING EXPERTISE – Parts are reviewed, validated and approved by Fel-Pro engineers through rigorous research, development and testing
INSTALLATION AID – Installation tool included to protect inner lip of seal from damage during seal installation
COVERAGE – Available for domestic and foreign nameplate vehicles

from

$22.99

DESIGNED FOR IMPERFECT SEALING SURFACES – Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
ENGINEERED TO PERFORM – Proprietary cork-rubber formulation
SUPERIOR SEAL – Highly conformable to accommodate for the imperfect sealing surfaces
EVERY PART FOR THE REPAIR – Fel-Pro gasket sets include every part needed for the repair unless otherwise noted
REAL WORLD TESTED – Parts are tested on-vehicle and validated to ensure optimal performance on the road

from

$26.99

Application specific design to ensure a perfect fit
Meets or exceeds all original equipment specifications
Engineered and manufactured specifically for repair applications
Unsurpassed quality you can trust
Validated for fit, form, and function

from

$15.99

Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Engineered and manufactured to meet or exceed OEM specifications
Unsurpassed quality you can trust
Validated for fit, form, and function
Not intended for use in emission controlled vehicles.

from

$19.99

Timing cover set includes gaskets and seals necessary for timing chain/belt replacement job
Application specific design to ensure a perfect fit
Engineered and manufactured specifically for the repair environment
Unsurpassed quality you can trust
Validated for fit, form, and function

from

$2.99

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust.

Product Features:

Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Engineered for the sealing repair environment
Unsurpassed quality you can trust
Validated for fit, form, and function

from

$30.99

Available in kits including front cover gasket, crankshaft seal, fuel pump and water pump gasket or including cover gasket and front seal.

Product Features:

Timing Cover Gasket And Oil Seal Kit

from

$9.79

RIGHT TYPE – Valve stem seals designs are application-specific for the repair occasion using either deflector (umbrella) seals, O-ring style or positive seals
QUALITY MATERIALS – Each valve stem seal features materials based on the specific application for your vehicle repair
ENGINEERING EXPERTISE – Parts are reviewed, validated and approved by Fel-Pro engineers through rigorous research, development and testing
INSTALLATION AID – Installation tool included to protect inner lip of seal from damage during seal installation
COVERAGE – Available for domestic and foreign nameplate vehicles

from

$17.99

DESIGNED FOR IMPERFECT SEALING SURFACES – Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
ENGINEERED TO PERFORM – Proprietary cork-rubber formulation
SUPERIOR SEAL – Highly conformable to accommodate for the imperfect sealing surfaces
EVERY PART FOR THE REPAIR – Fel-Pro gasket sets include every part needed for the repair unless otherwise noted
REAL WORLD TESTED – Parts are tested on-vehicle and validated to ensure optimal performance on the road

from

$223.99

COMP Cams offers a complete line of valve stem seals, from the umbrella seals to the positive-stop Teflon seal. These seals are a must to keep unwanted oil from entering the combustion chamber through the clearance in the valve guides. The umbrella seal is normally used when a larger-than-stock diameter spring is used, in the case of a double spring, the positive-stop Teflon seal is used. The umbrella seals require no machining, but with the Teflon seal it is necessary to disassemble the heads and machine the top of the guide with a special .530 diameter cutter. Whenever you are planning an engine overhaul or a cam change, don’t forget the valve seals.

Product Features:

Work with .530″ guides and 11/32″ valve stem diameter
Valve stem oil seals keep unwanted oil from entering the combustion chamber
Several different types of valve seals are offered

from

$21.49

RIGHT TYPE – Valve stem seals designs are application-specific for the repair occasion using either deflector (umbrella) seals, O-ring style or positive seals
QUALITY MATERIALS – Each valve stem seal features materials based on the specific application for your vehicle repair
ENGINEERING EXPERTISE – Parts are reviewed, validated and approved by Fel-Pro engineers through rigorous research, development and testing
INSTALLATION AID – Installation tool included to protect inner lip of seal from damage during seal installation
COVERAGE – Available for domestic and foreign nameplate vehicles

from

$174.99

Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Engineered and manufactured specifically for the repair environment
Unsurpassed quality you can trust
Includes all parts needed to complete the repair

from

$166.99

Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Engineered and manufactured specifically for the repair environment
Unsurpassed quality you can trust
Includes all parts needed to complete the repair

In-Demand Engine Timing Parts for 1966 Mercury Comets

Select from 44 premium Engine Timing Parts parts for your 1966 Mercury Comet, with prices ranging from $4.99 to $229.99.

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from

$12.49

Made of stainless steel
Designed to prevent timing cover seal leaks
Takes up gaps caused by worn-out harmonic balancer shafts

from

$45.99

Designed to repair damaged, grooved or worn shafts
Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
Easy to install with removable flange and installation tool

from

$12.49

Design type: spring loaded; single-lip
Temperature range: -20 Deg. F to 300 Deg. F / -29 Deg. C to 49 Deg. C
Resistance to EP lubricants
Low swell in hydrocarbon fluids
Delivers quality and reliable performance for every type of repair

from

$139.99

This direct replacement timing cover matches the fit and function of the original equipment cover for a reliable repair. This part has undergone extensive testing to ensure adherence to precise design standards.

Product Features:

Direct replacement – this engine timing cover matches the fit and function of the original equipment cover
Durable construction – this part is specifically designed to withstand extreme underhood temperatures for a long service life
Cost-effective solution – offers original equipment quality at a competitive price
Quality tested – this part has undergone extensive testing to ensure a quality fit and long service life

from

$4.99

Product Features:

Brand may vary by location

from

$74.99

Product Features:

Solid Bushing Chain Resists Stretching
For Use with Stock or Edelbrock Camshafts
Stressproof Steel Crank Gears
3 Keyway Setting Points To Ensure Accurate Timing
True Bearing Surface Rolls with the Sprockets
For Engine with One-Piece Fuel Pump Eccentric

from

$33.99

Utilizes the latest in design and technology to offer complete chain sets. CAD designed and manufactured using premium materials. Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance. Utilizes the latest in design and technology to offer complete chain sets. Refer to our online catalog for detailed application-specific information. SET INCLUDES: S406T Engine Timing Camshaft Sprocket (1 EA), S431 Engine Timing Crankshaft Sprocket (1 EA), C358 Engine Timing Chain (1 EA).

Product Features:

Timing Set includes all components for a quick and efficient replacement
CAD designed and manufactured using premium materials
Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
Utilizes the latest in design and technology to offer complete chain sets
Refer to our online catalog for detailed application-specific information

from

$42.99

ARP timing cover bolts are available in both polished stainless steel or black oxide finish chrome moly. You also can choose between standard hex head bolts or compact 12 point fasteners. Also available as part of ARP complete engine and accessory kits. Studs are preferred by many pro engine builders because they eliminate the chance of pinching gaskets and contribute to easier engine assembly. You will note that ARP studs feature a special bullet nose to guide the nut accurately into place. Available in black oxide finish 8740 chrome moly or polished stainless steel with hex or 12 point nuts. Alternators that come loose are a pain, so That is why ARP came up with these super tough bolts (your choice of chrome moly steel or polished stainless (ARP 300) both rated 170,000 PSI). The stainless has the added advantage of being rust and corrosion resistant. It is the fastener of choice.

Product Features:

Made From Black Oxide Finished 8740 Chrome Moly Or Corrosion Resistant Stainless Steel
Nominally Rated At 180,000 Pounds Per Square Inch Tensile Strength To Provide You With Plenty Of Clamping Force
Made In USA
Will Not Fit 5.0L Roller Cam Applications
Sold As A Kit

from

$85.99

Product Features:

Solid Bushing Chain Resists Stretching
For Use with Stock or Edelbrock Camshafts
Stressproof Steel Crank Gears
3 Keyway Setting Points To Ensure Accurate Timing
True Bearing Surface Rolls with the Sprockets

from

$33.99

Utilizes the latest in design and technology to offer complete chain sets. CAD designed and manufactured using premium materials. Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance. Utilizes the latest in design and technology to offer complete chain sets. Refer to our online catalog for detailed application-specific information. SET INCLUDES: S321 Engine Timing Crankshaft Sprocket (1 EA), C494 Engine Timing Chain (1 EA), S396T Engine Timing Camshaft Sprocket (1 EA).

Product Features:

Timing Set includes all components for a quick and efficient replacement
CAD designed and manufactured using premium materials
Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
Utilizes the latest in design and technology to offer complete chain sets
Refer to our online catalog for detailed application-specific information

from

$32.99

Sprockets Are Made From High Alloy Steel, and Heat-Treated For Durability. Chain Is Pre-Stressed and Heat-Treated For Longevity. SET INCLUDES: S308 Engine Timing Camshaft Sprocket (1 EA), S397 Engine Timing Crankshaft Sprocket (1 EA), C351 Engine Timing Chain (1 EA).

Product Features:

Utilizes the latest in design and technology to offer complete chain sets
CAD designed and manufactured using premium materials
Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
Utilizes the latest in design and technology to offer complete chain sets
Refer to our online catalog for detailed application-specific information

from

$122.99

Billet Camshaft Sprocket for Superior Street Performance. Billet Crankshaft Sprocket Has Nine Keyways for +/- 8 Degrees Adjustability. Crankshaft Sprocket Heat Treated for Durability. Seamless TRUE Roller 0.250″ Roller Diameter Chain for Reduced Friction.

Product Features:

The complete kits, which meet or exceed OEM performance requirements, ensure a quiet and maintenance-free experience
Cloyes parts are CAD designed and manufactured using premium materials. Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
Cloyes Timing Kits may include camshaft sprockets, crankshaft sprockets, timing chains, tensioners, and guides
Refer to our online catalog for detailed application-specific information
Keep your engine’s valve train in perfect time with Cloyes, the world leader in timing drive systems.

from

$19.99

Street Performance 3/8″ Pitch Double Roller Replacement True Roller Chain. Seamless 0.250″ Roller Diameter. Heat Treated and Processed Links to Maximize Breaking Strength while Remaining Ductile for Toughness. Prestressed to Increase Fatigue Life. USA Made.

Product Features:

A timing chain synchronizes the rotation of the crankshaft and camshaft(s), ensuring proper timing of the engines valve events for each cylinder
Our chains are engineered and manufactured with precision pitch control for proper chain-to-sprocket tooth fitment
From stock replacement to high performance, Cloyes has the most complete timing chain catalog
Cloyes parts are CAD designed and manufactured using premium materials. Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
Cloyes recommends the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced as these components play a vital role in system stability and accurate timing
Refer to our online catalog for detailed application-specific information
Keep your engines valvetrain in perfect time with Cloyes, the world leader in timing drive systems

from

$89.99

Billet Crankshaft Sprocket Has Three Keyways for +/- 4 Degrees Adjustability. Crankshaft Sprocket Heat Treated for Durability. 0.200″ Double Row Fixed Bushing Chain.

Product Features:

The complete kits, which meet or exceed OEM performance requirements, ensure a quiet and maintenance-free experience
Cloyes parts are CAD designed and manufactured using premium materials. Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
Cloyes Timing Kits may include camshaft sprockets, crankshaft sprockets, timing chains, tensioners, and guides
Refer to our online catalog for detailed application-specific information
Keep your engine’s valve train in perfect time with Cloyes, the world leader in timing drive systems.

from

$15.99

A timing chain synchronizes the rotation of the crankshaft and camshaft(s) ensuring proper timing and allows the engine’s valves to open and close during each cylinder’s firing. Available in kits or as a stand-alone product, our chains are pre-stressed and heat-treated for increased durability. Our chains are engineered and manufactured with precision pitch control for proper chain-to-sprocket tooth fitment

Product Features:

Recommended that the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced, as these components play a vital role in system stability and accurate timing
Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
Engineered and manufactured with precision pitch control for proper chain-to-sprocket tooth fitment
CAD designed and manufactured using premium materials
Refer to our online catalog for detailed application-specific information
Pre-Stressed And Heat-Treated For Increased Durability. Precision Cut Plates And Rollers With Smooth Finish. Precision Pitch Control For Proper Chain To Sprocket Tooth Fit.

from

$119.99

The complete kits, which meet or exceed OEM performance requirements, ensure a quiet and maintenance-free experience
Cloyes parts are CAD designed and manufactured using premium materials. Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
Cloyes Timing Kits may include camshaft sprockets, crankshaft sprockets, timing chains, tensioners, and guides
Refer to our online catalog for detailed application-specific information
Keep your engine’s valve train in perfect time with Cloyes, the world leader in timing drive systems.

from

$20.99

Recommended that the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced, as these components play a vital role in system stability and accurate timing
Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
Engineered and manufactured with precision pitch control for proper chain-to-sprocket tooth fitment
CAD designed and manufactured using premium materials
Refer to our online catalog for detailed application-specific information
Pre-Stressed And Heat-Treated For Increased Durability. Precision Cut Plates And Rollers With Smooth Finish. Precision Pitch Control For Proper Chain To Sprocket Tooth Fit.

from

$7.99

Featuring precision-tooled or machined tooth form and precision-machined bore for true fit, timing chain sprockets offer reliability and dependability for engine rebuilds and typical replacement jobs
Recommended that the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced, as these components play a vital role in system stability and accurate timing
CAD designed and manufactured using premium materials
Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
Refer to our online catalog for detailed application-specific information

from

$77.99

High Performance 3/8″ Pitch Double Roller Replacement True Roller Chain. 0.250″ Roller Diameter. Heat Treated and Processed Links to Maximize Ulitimate Breaking Strength while Remaining Ductile for Toughness. Prestressed to Increase Fatigue Life.

Product Features:

A timing chain synchronizes the rotation of the crankshaft and camshaft(s), ensuring proper timing of the engines valve events for each cylinder
Our chains are engineered and manufactured with precision pitch control for proper chain-to-sprocket tooth fitment
From stock replacement to high performance, Cloyes has the most complete timing chain catalog
Cloyes parts are CAD designed and manufactured using premium materials. Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
Cloyes recommends the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced as these components play a vital role in system stability and accurate timing
Refer to our online catalog for detailed application-specific information
Keep your engines valvetrain in perfect time with Cloyes, the world leader in timing drive systems

from

$20.99

Street Performance 3/8″ Pitch Double Roller Replacement TRUE Roller Chain. Seamless 0.250″ Roller Diameter. Heat Treated and Processed Links to Maximize Breaking Strength while Remaining Ductile for Toughness. Pre-stressed to Increase Fatigue Life.

Product Features:

A timing chain synchronizes the rotation of the crankshaft and camshaft(s), ensuring proper timing of the engines valve events for each cylinder
Our chains are engineered and manufactured with precision pitch control for proper chain-to-sprocket tooth fitment
From stock replacement to high performance, Cloyes has the most complete timing chain catalog
Cloyes parts are CAD designed and manufactured using premium materials. Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
Cloyes recommends the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced as these components play a vital role in system stability and accurate timing
Refer to our online catalog for detailed application-specific information
Keep your engines valvetrain in perfect time with Cloyes, the world leader in timing drive systems

from

$52.99

Billet Crankshaft Sprocket Has Three Keyways for +/- 4 Degrees Adjustability. Crankshaft Sprocket Heat Treated for Durability. 0.200″ Double Row Fixed Bushing Chain.

Product Features:

The complete kits, which meet or exceed OEM performance requirements, ensure a quiet and maintenance-free experience
Cloyes parts are CAD designed and manufactured using premium materials. Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
Cloyes Timing Kits may include camshaft sprockets, crankshaft sprockets, timing chains, tensioners, and guides
Refer to our online catalog for detailed application-specific information
Keep your engine’s valve train in perfect time with Cloyes, the world leader in timing drive systems.

from

$18.79

Design type: spring loaded; single-lip
Temperature range: -40 Deg. F to 225 Deg. F / -40 Deg. C to 107 Deg. C
Good low temperature capability
Low swell in hydrocarbon fluids
Delivers quality and reliable performance for every type of repair

from

$229.99

Billet Crankshaft Sprocket Has Nine Keyways for +/- 8 Degrees Adjustability. Both Billet Steel Sprockets are Heat Treated for Durability. TRUE Roller 0.250″ Roller Diameter “Z” Chain for Reduced Friction. “Z” Chain Approximately 33% Overall Increased Strength Over the Standard High Performance Chain. “Z” Chain Featuring a Press Fit Center Link design that Increases Load Distribution with Heat Treated and Processed Links to Maximize Ultimate Breaking Strength while Remaining Ductile for Toughness and Pre-stressed to Increase Fatigue Life. 3-Piece Sets Hand-Matched to Qualify the Correct Center Distance and Minimize Runout. Includes Captured Needle Camshaft Sprocket Thrust Bearing to Minimize Block Thrust Surface Friction. 3-Piece Sets Hand-Matched to Qualify the Correct Center Distance and Minimize Runout.

Product Features:

The complete kits, which meet or exceed OEM performance requirements, ensure a quiet and maintenance-free experience
Cloyes parts are CAD designed and manufactured using premium materials. Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
Cloyes Timing Kits may include camshaft sprockets, crankshaft sprockets, timing chains, tensioners, and guides
Refer to our online catalog for detailed application-specific information
Keep your engine’s valve train in perfect time with Cloyes, the world leader in timing drive systems.

from

$221.99

Product Features:

Designed for 1500 to 7000 Performance
Large Plenum
Long Tapered Runners
90mm. Throttle Body Opening
Polished Finish

Most Sold 1966 Mercury Comet Engine Mounts

Explore our best-selling Mercury parts for the 1966 Comet among 5 OEM and aftermarket options starting from $6.99.

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from

$17.99

The purpose of the mount is to support the engine and transmission on the chassis and dampen vibration and noise from reverberating to the rest of the vehicle. Engine and Transmission Mounts are engineered and manufactured to meet or exceed OEM specifications using the latest CAD/CAM engineering process to ensure superior quality, form, fit and function. Only premium quality materials are used in the manufacturing process to guarantee precise performance and maximum durability. Applicable to Applicable to FORD 64-72; MERCURY 66-73;. Please verify your application.

Product Features:

MAXIMUM LIFE & PERFORMANCE: Both natural and SBR (Styrene Butadiene) rubber provide good abrasion resistance and aging stability to ensure maximum life and performance.
MEETS OR EXCEEDS DUROMETER MEASUREMENTS: All rubber material is manufactured to specific Durometer (hardness) measurements based on the vehicle’s application requirements.
HARDENED STEEL FASTENERS: All fasteners are made of hardened steel with heat treated Grade #5 bolts.
SUPERIOR BOND: A special Chemlock® bonding agent is used to ensure a superior rubber-to-metal bond.
HYDRAULIC MOUNT DESIGN: Hydraulic Mounts (applicable where OE) are designed for most front wheel drive vehicles because transverse drive train mounting.
For Years: 1964-1973
Weight approx: 3 Lbs
PART GROUP: 2257, 2257
PRODUCT: MADE IN THE USA

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$65.99

Stamped steel muscle mounts are the ideal alternative to noisy, vibrating solid mounts. Heavy gauge steel frame and engine brackets are vulcanized to hard durometer rubber. Safety interlock design eliminates need for torque straps or cables. GM application, see catalog for specific vehicle listing.

Product Features:

Without Noise Or Vibration
Heavy Gauge Steel Frame
Safety Interlock Design
No Need For Torque Straps/Cables
Ideal For Replacing Old Mounts

from

$8.49

The purpose of the mount is to support the engine and transmission on the chassis and dampen vibration and noise from reverberating to the rest of the vehicle. Engine and Transmission Mounts are engineered and manufactured to meet or exceed OEM specifications using the latest CAD/CAM engineering process to ensure superior quality, form, fit and function. Only premium quality materials are used in the manufacturing process to guarantee precise performance and maximum durability. Applicable to Applicable to FORD 66-72; MERCURY 66-74;. Please verify your application.

Product Features:

MAXIMUM LIFE & PERFORMANCE: Both natural and SBR (Styrene Butadiene) rubber provide good abrasion resistance and aging stability to ensure maximum life and performance.
MEETS OR EXCEEDS DUROMETER MEASUREMENTS: All rubber material is manufactured to specific Durometer (hardness) measurements based on the vehicle’s application requirements.
HARDENED STEEL FASTENERS: All fasteners are made of hardened steel with heat treated Grade #5 bolts.
SUPERIOR BOND: A special Chemlock® bonding agent is used to ensure a superior rubber-to-metal bond.
HYDRAULIC MOUNT DESIGN: Hydraulic Mounts (applicable where OE) are designed for most front wheel drive vehicles because transverse drive train mounting.
For Years: 1966-1974
Weight approx: 2 Lbs
PART GROUP: 2333, 2333

from

$10.99

The purpose of the mount is to support the engine and transmission on the chassis and dampen vibration and noise from reverberating to the rest of the vehicle. Engine and Transmission Mounts are engineered and manufactured to meet or exceed OEM specifications using the latest CAD/CAM engineering process to ensure superior quality, form, fit and function. Only premium quality materials are used in the manufacturing process to guarantee precise performance and maximum durability. Applicable to Applicable to FORD 65-71; MERCURY 65-70;. Please verify your application.

Product Features:

MAXIMUM LIFE & PERFORMANCE: Both natural and SBR (Styrene Butadiene) rubber provide good abrasion resistance and aging stability to ensure maximum life and performance.
MEETS OR EXCEEDS DUROMETER MEASUREMENTS: All rubber material is manufactured to specific Durometer (hardness) measurements based on the vehicle’s application requirements.
HARDENED STEEL FASTENERS: All fasteners are made of hardened steel with heat treated Grade #5 bolts.
SUPERIOR BOND: A special Chemlock® bonding agent is used to ensure a superior rubber-to-metal bond.
HYDRAULIC MOUNT DESIGN: Hydraulic Mounts (applicable where OE) are designed for most front wheel drive vehicles because transverse drive train mounting.
For Years: 1965-1971
Weight approx: 2 Lbs
PART GROUP: 2240, 2241

from

$6.99

The purpose of the mount is to support the engine and transmission on the chassis and dampen vibration and noise from reverberating to the rest of the vehicle. Engine and Transmission Mounts are engineered and manufactured to meet or exceed OEM specifications using the latest CAD/CAM engineering process to ensure superior quality, form, fit and function. Only premium quality materials are used in the manufacturing process to guarantee precise performance and maximum durability. Applicable to Applicable to FORD 65-71; MERCURY 65-70;. Please verify your application.

Product Features:

MAXIMUM LIFE & PERFORMANCE: Both natural and SBR (Styrene Butadiene) rubber provide good abrasion resistance and aging stability to ensure maximum life and performance.
MEETS OR EXCEEDS DUROMETER MEASUREMENTS: All rubber material is manufactured to specific Durometer (hardness) measurements based on the vehicle’s application requirements.
HARDENED STEEL FASTENERS: All fasteners are made of hardened steel with heat treated Grade #5 bolts.
SUPERIOR BOND: A special Chemlock® bonding agent is used to ensure a superior rubber-to-metal bond.
HYDRAULIC MOUNT DESIGN: Hydraulic Mounts (applicable where OE) are designed for most front wheel drive vehicles because transverse drive train mounting.
For Years: 1965-1971
Weight approx: 2 Lbs
PART GROUP: 2240, 2241

Top-Rated Engine Parts Brands For Your 1966 Mercury Comet

Shop for the best-rated brands offering Engine Parts and other products for your 1966 Mercury Comets. Below you’ll find some of our best rated Engine Parts from FELPRO, Sealed Power, and Dorman, and more. Engine Parts from these brands that fit a 1966 Comet start at just $0.43 and are rated as high as 4.6 stars. OEM and aftermarket Engine Parts don’t get more top quality, durable, and affordable than from the brands below.

Popular FELPRO 1966 Mercury Comet Engine Parts

When it comes to maintaining or upgrading your 1966 Mercury Comet, using quality Engine Parts is essential to ensure durability and a perfect fit. FELPRO ticks all of those boxes. We offer a wide selection of FELPRO Engine Parts, specifically designed for the 1966 Mercury Comet. With over 3 FELPRO brand Engine Parts in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $3.99, with an average price of just $34.99. Plus, with over 64 customer reviews and an average rating of 4.6 stars, you can trust that our FELPRO Engine Parts will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.

from $3.99

(26)

Fuel Pump Mounting Gasket

“Needed for pump that was bought”

from $52.99

(6)

Engine Oil Pan Gasket Set – PermaDryPlus rigid carrier, Oil Pan SnapUps Included

“Good product, reliable company”

from $47.99

(32)

Engine Valve Cover Gasket Set

“OEM replacement”

Popular Sealed Power 1966 Mercury Comet Engine Parts

Sealed Power auto parts is one of the highest quality Engine Part brands in the market. Any 1966 Mercury Comet owner should feel confident when installing genuine Sealed Power parts in their vehicle. To ensure the best fit and performance for your 1966 Comet, Advance Auto Parts carries a full inventory of 3 Sealed Power Engine Parts. Plus you will be keeping your Mercury in peak condition while saving money because prices on these Sealed Power Engine Parts range from $0.43 to $11.99, plus, with more than 4 customer reviews and an impressive 4.3 stars average rating, you can be confident the Fram Engine Parts below will deliver on both quality and value.

from $11.99

(1)

Engine Valve Lifter

“Best price around and the only store with availability. Can’t go wrong with Sealed Power”

from $0.43

(2)

Engine Valve Spring Retainer Keeper

“You guys are always great”

from $5.29

(1)

Engine Connecting Rod Bearing

“arrived quickly, exactly what I ordered”

FAQs for 1966 Mercury Comet Engine Parts

Which Engine Parts are best-sellers for 1966 Mercury Comets?

Out of 319 Engine Parts that fit 1966 Mercury Comets, the following parts are the top sellers:

Engine Valve Lifter (5688671) – $12.99
Engine Valve Lifter (5688663) – $11.99
Rubber Expansion Plug 3/4 In. – Size Range 3/4 In. – 7/8 In. (89014938) – $11.49

What’s the price range for 1966 Mercury Comet Engine Parts?

Engine Part prices for the 1966 Mercury Comet start at $0.30 and go up to $1,838.99 for the most premium parts.

What’s the average price of a Engine Part for a 1966 Mercury Comet?

The average price for Engine Parts for the 1966 Mercury Comet is $90.04. Keep in mind the variety of part types within our Engine Part category so you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Engine Parts for other Mercury Comet model years?

Yes, we currently carry Engine Parts for 15 model years of Mercury Comets between 1960 and 1977. Engine Parts are bought most frequently for the following model years: 1977, 1976, 1975, 1974, 1973, 1972, 1971, 1969, and 1968.

What are the cheapest Engine Parts for my 1966 Mercury Comet?

The cheapest 1966 Mercury Comet Engine Parts we carry in stock are:

Engine Valve Spring Retainer Keeper (19694177) – $0.30
Engine Valve Spring Retainer Keeper (19694179) – $0.43
Engine Rocker Arm Nut (19694259) – $0.72
Steel Cup Expansion Plug 1-1/2 In., Height 0.220 (3492249) – $1.29
Steel Cup Expansion Plug 3/4 In., Height 0.250 (sold by each) (16140174) – $1.79

What are the top-rated Engine Parts that fit the 1966 Mercury Comet?

Out of 360 reviews by customers, our 1966 Mercury Comet Engine Parts have an average customer rating of . These are some of the highest-rated Engine Part types for the 1966 Mercury Comet and their top-rated products:

Valve Cover and Cylinder Heads
- PermaTorque Engine Cylinder Head Gasket (5184215) – $35.99
- Engine Valve Lifter (5688663) – $11.99
- Engine Valve Spring Retainer Keeper (19694179) – $0.43
Engine Gaskets and Seals
- PermaTorque Engine Cylinder Head Gasket (5184215) – $35.99
- Engine Valve Lifter (5688663) – $11.99
- Engine Valve Spring Retainer Keeper (19694179) – $0.43

What types of Engine Parts do you sell for my 1966 Mercury Comet?

As of 11/2/25, these are some of the most in-demand types of Engine Parts for a 1966 Mercury Comet:

Can I get help with 1966 Mercury Comet Engine Part orders?

Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Mercury Engine Parts and more.

What is your return policy for Mercury Comet Engine Parts?

Advance Auto Parts keeps returns simple. For new Mercury Comet Engine Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.

1966 Mercury Comet Engine Parts

Cloyes Gear – Engine Timing Camshaft Sprocket (Part No.S420T)

Edelbrock – Cylinder Head Gasket Set for Ford (Part No.7313)

Competition Cams – SUPER VALVE LOCKS, 3/8" 1 ST (Part No.612-16)

Felpro – Engine Crankshaft Seal Kit (Part No.BS 30136)

Edelbrock – RPM Small-Block Ford 351 Cleveland Cylinder Head Hydraulic Roller Cam (Part No.61625)

Sealed Power – Engine Crankshaft Main Bearing Set (Part No.4261M 30)

Dorman – Steel Cup Expansion Plug 2-3/16 In. SC, Height 0.360 (sold by each) (Part No.555-051)

Cloyes Performance – High Performance Timing Set (Part No.9-3138)

Felpro – Engine Conversion Gasket Set (Part No.CS 8548-5)

Felpro – Engine Valve Stem Oil Seal Set (Part No.SS 13364-1)

Melling – Stock Replacement OE Type High Volume Oil Pump (Part No.M-84AHV)

Felpro – Engine Valve Cover Gasket Set (Part No.VS 13049 R)

Sealed Power – Engine Camshaft Bearing Set (Part No.1204M)

Dorman – Brass Pipe Plug – Square Head – 1/4 In. MNPT (Part No.785-071D)

Melling – Engine Oil Priming Tool (Part No.MPL-201)

Dorman – Connecting Rod Nuts, Type 2, 3/8-24 X 9/16 In., Ford (sold by each) (Part No.635-002)

National – Shaft Repair Sleeve (Part No.99174)

Sealed Power – Engine Rocker Arm Nut (Part No.MR-1823)

Felpro – Engine Crankshaft Seal Kit (Part No.BS 30138)

Edelbrock – Engine Gasket Set (Head / Intake / Exhaust / Valve Cover) for Ford (Part No.7368)

Dorman – Harmonic Balancer Assembly (Part No.594-269)

Felpro – PermaTorque Engine Gasket Set (Part No.FS 7916 PT-3)

Edelbrock – Signature Series Valve Covers: Small Block Ford 221-351W 62-95, Chrome Steel (Part No.4460)

Felpro – Engine Oil Pump Pickup Tube Gasket (Part No.72516)

Sealed Power – Engine Piston Set (Part No.H304CP 60)

Victor Reinz – Fuel Pump Mounting Gasket (Part No.71-13599-00)

Melling – Stock Replacement Type Oil Pump Intermediate Shaft (Part No.IS-83)

Sealed Power – Engine Rocker Arm Kit (Part No.R-855)

Edelbrock – Performer RPM Camshaft And Lifter Kit #7122 For Small-Block Ford 289-302 V8 (Part No.7122)

Sealed Power – Engine Camshaft Bearing Set (Part No.1204M)

Dorman – Steel Cup Expansion Plug 2-1/16 In. SC, Height 0.380 (Sold by each) (Part No.555-048)

Sealed Power – Engine Camshaft Bearing Set (Part No.1445M)

Dorman – Steel Cup Expansion Plug 2-1/8 In. SC, Height 0.360 (Sold by each) (Part No.555-070)

Dorman – Steel Cup Expansion Plug 1-53/64 In., Height 0.380 (sold by each) (Part No.555-083)

Dorman – Steel Cup Expansion Plug 2-3/16 In. SC, Height 0.360 (sold by each) (Part No.555-051)

Edelbrock – Rollin’ Thunder Camshaft for Small-Block Ford 289-302 V8 (Part No.2221)

Edelbrock – Performer-Plus Camshaft Kit for Big-Block Ford FE 390-428 V8 (Part No.7106)

Edelbrock – CAMSHAFTS (Part No.2117)

Driveworks – Main Bearing Repair Sleeve (Part No.S-99181)

Dorman – Steel Reverse Taper Cup Expansion Plug 3/8 In. SC, Height 0.310 In. (Sold by each) (Part No.555-054)

Sealed Power – Engine Valve Lifter (Part No.HT-2083)

Felpro – PermaTorque Engine Cylinder Head Gasket (Part No.8548 PT-2)

Sealed Power – Engine Valve Spring Retainer Keeper (Part No.VK-115)

Sealed Power – Engine Valve Lifter (Part No.HT-900)

Felpro – PermaTorque Engine Cylinder Head Gasket (Part No.9333 PT-1)

Felpro – PermaTorque Engine Cylinder Head Gasket Set (Part No.HS 8548 PT-11)

Sealed Power – Engine Rocker Arm Kit (Part No.R-847)

Sealed Power – Engine Rocker Arm Nut (Part No.MR-1823)

Edelbrock – Sure Seat Valve Springs for Ford 429/460 V8 1969-1987 (Part No.5767)

Dorman – STD Cylinder Head Bolt, 7/16-14 X 3.938 X 1-1/16 In., Hex 5/8 In. (Sold by each) (Part No.675-131)

Sealed Power – Engine Push Rod (Part No.RP-3165)

Sealed Power – Engine Rocker Arm Kit (Part No.R-836)

Edelbrock – Signature Series Valve Covers: Small Block Ford 221-351W 62-95, Chrome Steel (Part No.4460)

ARP Auto Racing – For Use With Ford Small Block 289/ 302, Hex Head, 180000Psi Tensile (Part No.154-3601)

Felpro – PermaTorque Engine Cylinder Head Gasket Set (Part No.HS 7916 PT-2)

Competition Cams – PUSHROD SET, SBF HIGH ENERGY 1 ST (Part No.7831-16)

Competition Cams – SUPER VALVE LOCKS, 3/8" 1 ST (Part No.612-16)

Sealed Power – Engine Push Rod (Part No.RP-3172B)

Sealed Power – Engine Push Rod (Part No.RP-3172)

Edelbrock – Signature Series Valve Covers: Ford FE 332-428 V8 1958-76, Chrome Steel (Part No.4462)

Mr. Gasket – Mls Head Gasket (Part No.3175G)

Competition Cams – Set of 16 – 10 Degree, 11/32", Single Groove Locks w/ Lash Cap Recess (Part No.611-16)

Dorman – Steel Cup Expansion Plug 1-1/2 In., Height 0.480 (sold by each) (Part No.555-028)

Dorman – Steel Cup Expansion Plug 13.70mm, Height 0.180 (Sold by each) (Part No.555-007)

Felpro – Fuel Pump Mounting Gasket (Part No.6579)

Felpro – Engine Valve Cover Gasket Set (Part No.VS 13264 T)

Felpro – Engine Oil Pan Gasket Set – PermaDryPlus rigid carrier, Oil Pan SnapUps Included (Part No.OS 13260 T)

Felpro – Engine Timing Cover Gasket Set (Part No.TCS 45008)

Felpro – Engine Oil Pan Gasket Set – Blue Stripe cork-rubber (Part No.OS 13260 C)

Felpro – Engine Valve Cover Gasket Set (Part No.VS 13264 C)

Felpro – Engine Oil Pump Pickup Tube Gasket (Part No.72516)

Felpro – PermaTorque Engine Gasket Set (Part No.FS 8554 PT)

Felpro – VALVE COVER GASKET SET (Part No.VS 50029 C)

Felpro – Engine Valve Cover Gasket Set (Part No.VS 13049 C)

Felpro – Engine Valve Cover Gasket Set (Part No.VS 13264 R)

Felpro – Engine Valve Stem Oil Seal Set (Part No.SS 72562)

Felpro – Engine Valve Cover Gasket Set (Part No.VS 13049 R)

Felpro – Engine Crankshaft Seal Kit (Part No.BS 30138)

Felpro – Engine Valve Cover Gasket Set (Part No.VS 12692)