1966 Mercury Comet Performance Engines

Essential 1966 Mercury Comet Performance Engines

Mr. Gasket – Ultra Seal; Harmonic Balancer Bolt/Washer Kit (Part No.7847)

Ultra Seal; Harmonic Balancer Bolt/Washer Kit

from

$35.99
The grade 8 bolts feature high hex head to prevent socket slippage. The thick parallel ground washer allows accurate uniform torque. Black finished, complete with split lock washer to prevent loosening.

Product Features:
  • Grade 8 material
  • Heat-treated for strength
  • Hex prevents socket slippage
  • Accurate and uniform torque
  • Black plated finish
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Edelbrock – Pushrod Set for Ford 351W (Part No.9659)

Pushrod Set for Ford 351W

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$190.99
Edelbrock part #9659 Pushrods are designed for small-block Ford 351W V-8 engine applications. These one-piece pushrods are manufactured from high quality 4130 Chromoly steel tubing that has been surface hardened for maximum durability. They have precise f

Product Features:
  • 7.7 in. Length
  • 0.312 in. Diameter
  • 4130 Chromoly Steel Material
  • Black Oxide Finish
  • Made In The USA
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Mr. Gasket – Chrome Dress-Up Kit (Part No.9833)

Chrome Dress-Up Kit

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$149.99
Kits include most popular chrome dress-up components, including short, OEM height valve covers with integral oil baffles.

Product Features:
  • Includes oil baffles
  • Chrome plated
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Edelbrock – TIMING CHAIN (Part No.7844)

TIMING CHAIN

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$29.99
Product Features:
  • Timing Chain Only
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Competition Cams – High Energy 206/206 Hydraulic Flat Cam for Ford 221-302 (Part No.31-215-2)

High Energy 206/206 Hydraulic Flat Cam for Ford 221-302

from

$550.99
Ideal for use with mainly stock components like rocker arms, intake manifolds, cylinder heads, compression ratio, torque converters and rear gear ratios, the High Energy camshaft grind family is a great choice for street performance applications. Offering

Product Features:
  • Good blend of efficiency and performance.
  • Perfect choice for performance street rebuilds.
  • Work well with mainly stock components such as rockers, manifolds, heads, compression, torque converters and gears.
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FEL-PRO Performance – Lower Intake Manifold Gasket Set: 5 Piece Set (Part No.1248)

Lower Intake Manifold Gasket Set: 5 Piece Set

from

$31.49
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • 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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FEL-PRO Performance – Engine Crankshaft Seal Kit (Part No.2901)

Engine Crankshaft Seal Kit

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$31.49
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Fluoroelastomer compound combines optimum resistance to heat, oils and abrasion for longivity.
  • Optimizes performance under high crankcase vacuum conditions, elevated temperatures and high RPM levels.
  • Not intended for use in emission controlled vehicles.
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Edelbrock – Performer 351 Intake Manifold for Ford 351- 2V Cleveland Engine (Part No.2750)

Performer 351 Intake Manifold for Ford 351- 2V Cleveland Engine

from

$416.99


Product Features:
  • For Idle to 5500 RPM Street-Driven Performance
  • Dual-Plane Low-Rise Intake w/180 deg. Firing Order
  • Patented Runner Design Ensures Broad Torque Curve
  • Excellent Throttle Response and Mid-Range Power
  • 50-State Street Legal if Correct Carburetor Used
  • Accepts both 4V and 2V Carburetors
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Edelbrock – Sure Seat Valve Springs for S/B Ford 289/302/351W O.E. Cast iron heads (Part No.5722)

Sure Seat Valve Springs for S/B Ford 289/302/351W O.E. Cast iron heads

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$76.99
Springs made of highest quality spring wire. Springs precision wound to close tolerances. 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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Edelbrock – 289-302 Ford Head Bolt Kit (Part No.8552)

289-302 Ford Head Bolt Kit

from

$107.99


Product Features:
  • Highest Quality Head Bolts
  • Cold-Formed/Heat Treated
  • Ensures Molecular Integrity
  • Reduced Diameter Bolt Heads
  • Hardened/Parallel-Ground Washers Included
  • Rated At 170000 psi
  • Manufactured By ARP
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Mr. Gasket – Super Intake Manifold Bolts (Part No.6082)

Super Intake Manifold Bolts

from

$40.99
Super Intake Manifold Bolts

FEL-PRO Performance – Engine Valve Cover Gasket Set (Part No.1614)

Engine Valve Cover Gasket Set

from

$25.49
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Die cut silicone rubber gaskets conform to out-of-flat covers
  • Great for on-again/off-again situations
  • Not intended for use in emission controlled vehicles.
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Edelbrock – Valve Cover Gasket Set for Ford (Part No.7568)

Valve Cover Gasket Set for Ford

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$40.99
Product Features:
  • Valve Cover Gasket
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Edelbrock – Water Pump for Small-Block Ford 351W in Black Finish (Part No.88433)

Water Pump for Small-Block Ford 351W in Black Finish

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$358.99
Edelbrock #88433 Water Pump Ford 1970-78 302 & 1970-87 351w v8 black ideal to prevent overheating in street rods and street machines, as well as in tow rigs and motorhomes. Using state-of-the-art racing technology, Edelbrock has designed these “super cool

Product Features:
  • Standard Impeller Rotation
  • 0.625 in. Pilot Shaft
  • 0.750 in. Ball/Ball Bearing
  • 5.70 in. Block To Hub Height
  • Black Finish
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Edelbrock – Water Pump Ford 1965-67 289 cid Polished (Part No.8847)

Water Pump Ford 1965-67 289 cid Polished

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$397.99
Maximum cooling for street and racing engines. Internal passages are balanced for maximum flow. Impeller is larger than others for maximum pressure. Impeller vanes dramatically increase flow rates. Equal distribution to both sides of block. Only flows in

Product Features:
  • Maximum Cooling for Street and Racing Engines
  • Internal Passages Are Balanced for Maximum Flow
  • Impeller is Larger than Others For Max Pressure
  • Impeller Vanes Dramatically Increase Flow Rates
  • Equal Distribution to Both Sides of Block
  • Only Flows in One-Direction for Optimum Efficiency
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Edelbrock – Street Legal Performer; Cylinder Head (Part No.60349)

Street Legal Performer; Cylinder Head

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$668.99
50 state street legal aluminum cylinder head. Out-of-the-box bolt-on performance. Intake valves are used for stock pistons.

Product Features:
  • 50-State Street Legal Aluminum Cylinder Head
  • Out-of-the-Box Bolt-On Performance
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Edelbrock – Street Legal Performer; Cylinder Head (Part No.603519)

Street Legal Performer; Cylinder Head

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$958.99
50 state street legal aluminum cylinder head. Out-of-the-box bolt-on performance. Intake valves are used for stock pistons.

Product Features:
  • 50-State Street Legal Aluminum Cylinder Head
  • Out-of-the-Box Bolt-On Performance
  • Hand-Blended Intake and Exhaust Bowls
  • CNC-Matched Intake/Exhaust Ports in Std Location
  • Thicker Deck Surfaces than Other Brands
  • Heli-Coils in Rocker Studs and Exhaust Bolt Holes
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Spectre – Water Neck; Ford 390-428 (Part No.4736)

Water Neck; Ford 390-428

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$47.99
Spectre’s Ford water neck fits Ford 390, 427 and 428 engines. This water neck has been designed around the OEM specifications and has a chrome plated finish for a lasting look that fits great. This water neck includes bolts.

Product Features:
  • Fits Ford 390, 427 and 428 engines
  • Includes bolts and gasket
  • Chrome plated
  • Easy to install
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FEL-PRO Performance – PERFORMANCE OIL PAN GASKET SET (Part No.1817)

PERFORMANCE OIL PAN GASKET SET

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$27.49
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Felcoid/Plus gaskets have a fiber sheet core and a latex rubber coating to eliminate potential leakage paths. The core material resists crushing and splitting, while providing excellent blowout resistance.
  • With steel core to provide ultimate excellent blowout resistance.
  • Not intended for use in emission controlled vehicles.
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FEL-PRO Performance – PERFORMANCE OIL PAN GASKET SET (Part No.1809)

PERFORMANCE OIL PAN GASKET SET

from

$25.49
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Felcoid/Plus gaskets have a fiber sheet core and a latex rubber coating to eliminate potential leakage paths. The core material resists crushing and splitting, while providing excellent blowout resistance.
  • With steel core to provide ultimate excellent blowout resistance.
  • Not intended for use in emission controlled vehicles.
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Mr. Gasket – Ultra Seal; Sure-Lock Rocker Arm Nuts (Part No.923G)

Ultra Seal; Sure-Lock Rocker Arm Nuts

from

$77.99
Designed to keep the rocker arms positively locked for precise and critical valve train adjustments. Manufactured from quality grade steel, then heat-treated for extra strength and plated with a durable finish. Kits include 16 rocker arm nuts with socket head set screws and one hex key wrench.

Product Features:
  • Sure-lock rocker arm nuts
  • Precise valve train adjustment
  • Keep rocker arms locked
  • High-quality grade steel
  • Heat-treated for ex strength
  • Plated with durable gold tone finish
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Competition Cams – ROCKER ARMS, DIE CAST ALUM SMALL BLOCK FORD 1.6 1 ST (Part No.17043-16)

ROCKER ARMS, DIE CAST ALUM SMALL BLOCK FORD 1.6 1 ST

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$237.99
The COMP Cams High Energy Die-Cast Aluminum Roller Rocker Arms are new rocker arms from the valve train leader that have been designed for street and moderate race use. They feature a die-cast body created from aluminum with a needle bearing fulcrum and roller tip. The die-cast, larger than stock body offers the strength properties and light weight of aluminum while the specially engineered fulcrum and roller tip decrease friction and lower oil temperatures, thus improving response and horsepower.

Product Features:
  • Cost effective aluminum construction provides superior strength to weight ratio
  • Needle bearing fulcrum and roller tip reduce friction and lower oil temperatures for improved response and horsepower
  • Durable design increases valve lift while withstanding the rigors of moderate race use
  • Die-formed aluminum body is larger than stock, and may require modifications to stock valve covers for clearance.
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Edelbrock – Performer Series Retainer (Qty 16) (Part No.9724)

Performer Series Retainer (Qty 16)

from

$100.99
Product Features:
  • Use W/ Valve Springs Part #5822, 5882, 5896, 5872, 5867, 5812, 5857
  • Set of 16
  • 1.50 in. Outside Diameter
  • Steel Material
  • Black Oxide Finish
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Mr. Gasket – Head Gasket (Part No.1132G)

Head Gasket

from

$35.99
With the ever-increasing technology in performance and racing engines, supercharged, turbo charged, nitrous-oxide and extreme compression ratios, a demand was created for stronger, more durable engine gaskets. Mr. Gasket, the originator of high performance gaskets, has met the challenge and developed performance gaskets in a variety of materials for all applications to meet the sealing demands of these engines. Mr. Gasket engine gaskets are the most advanced, tested and proven in the performance market today and earned the respect of many professional and sportsman racers.

Product Features:
  • Embossed copper
  • Provides excellent stability and reduces cyl distortion
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Edelbrock – Cylinder Head Gasket Set for Ford (Part No.7337)

Cylinder Head Gasket Set for Ford

from

$61.99
Product Features:
  • Cylinder Head Gasket Set
  • 1958-1976 390-428
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FEL-PRO Performance – Cylinder Head Gasket: Steel Core Composite, Without Head Bolts (Part No.1020)

Cylinder Head Gasket: Steel Core Composite, Without Head Bolts

from

$41.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Fel-Pro Performance head gaskets accommodate the high cylinder pressures and cylinder head movement associated with performance engines.
  • Inserted within a stainless steel armor surrounding each cylinder, wire ring design provides highly concentrated sealing around the combustion chamber.
  • Raises combustion sealing force to roughly three times that of standard head gaskets.
  • Steel wire rings for the greatest combustion seal strength.
  • Not intended for use in emission controlled vehicles.
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FEL-PRO Performance – Cylinder Head Gasket: Steel Core Composite, Without Head Bolts (Part No.1011-1)

Cylinder Head Gasket: Steel Core Composite, Without Head Bolts

from

$51.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • PROPRIETARY COATING – Nonstick anti-friction coating seals small surface imperfections
  • NO RETORQUE DESIGN – Steel core helps eliminate the need for retorquing head bolts
  • SUPERIOR SEAL – Precise embossed Printoseal sealing beads at all vital areas to eliminate leak paths
  • 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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Mr. Gasket – MLS Head Gasket (Part No.3175G)

MLS Head Gasket

from

$103.99
Manufactured from nitrile coated spring steel layers. Stress formed embossment provides excellent sealing. Also provides stability and reduces cylinder bore distortion. Ideal for super charged, turbo charged, nitrous oxide and extreme compression ratios. For high performance street, drag race and oval track. Packaged individually.

Product Features:
  • Ss layers with a elastomer coating
  • Stress formed embossments to seal ext pressure
  • Provides stability and reduces cyl distortion
  • For high performance street drag and oval track
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1966 Mercury Comet Performance Engines

Maybe you’re in the middle of a full rebuild of that 1966 Mercury Comet. Maybe you just need a couple of Performance Engines. Either way, Advance Auto Parts has 48 different Performance Engines in our inventory ranging from $19.99 to $958.99. That means you can find the exact parts or products you need to keep that 1966 Mercury Comet running smoothly.

Performance Engines are only as good as their brand. We stock 5 different brands to make sure you have plenty of trusted parts to choose from for your 1966 Mercury Comet. FEL-PRO Performance, Mr. Gasket, and Edelbrock are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!

We know you’ll find the perfect Performance Engines for your 1966 Mercury Comet, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 25 reviews in this category, some of the top rated parts include 289-302 Ford Head Bolt Kit with 2.0 stars and Chrome Dress-Up Kit with 2.0 stars.

So if you’re in the market for aftermarket Performance Engines to keep your 1966 Mercury Comet rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!

Performance Engines Brands To Make Your 1966 Mercury Comet Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 1966 Mercury Comet demands trusted brand parts and products to keep it running. Many trusted brands of Performance Engines make up Advance Auto Parts’ inventory, and all are ready to help make your Comet the best it can be. Be sure to browse some of our top Performance Engines brands and parts.

Popular Spectre Performance Engines

We carry Spectre parts in our stock across Performance Water Outlets categories, plus more. For a 1966 Mercury Comet, our most popular Spectre Performance Engines include:
Water Neck; Ford 390-428
from $47.99
(1)
Water Neck; Ford 390-428
Performance Water Outlets

Top 1966 Mercury Comet Performance Engines from FEL-PRO Performance

FEL-PRO Performance products are another trusted brand when it comes to Performance Engines for your 1966 Mercury Comet. Popular FEL-PRO Performance parts include:
Lower Intake Manifold Gasket Set: 11 Piece Set
from $33.99
(4)
Lower Intake Manifold Gasket Set: 11 Piece Set
Performance Engine Intake Manifold Gaskets
PERFORMANCE OIL PAN GASKET SET
from $25.49
(3)
PERFORMANCE OIL PAN GASKET SET
Performance Engine Oil Pan Gaskets
Cylinder Head Gasket: Steel Core Composite, Without Head Bolts
from $51.99
(2)
Cylinder Head Gasket: Steel Core Composite, Without Head Bolts
Performance Engine Cylinder Head Gaskets

FAQs for 1966 Mercury Comet Performance Engines

What are the most purchased Performance Engines for the 1966 Mercury Comet?

Out of 48 Performance Engines for the 1966 Mercury Comet, the most popular in our inventory are:
Intake Manifold Bolts
from $19.99
(1)
Intake Manifold Bolts
Performance Intake Manifolds
Intake Manifold Gasket for 1963-1996 Small-Block Fords
from $28.99
(1)
Intake Manifold Gasket for 1963-1996 Small-Block Fords
Performance Engine Intake Manifold Gaskets
Engine Valve Cover Gasket Set
from $46.99
(1)
Engine Valve Cover Gasket Set
Performance Engine Valve Cover Gasket Sets

What are the top-rated 1966 Mercury Comet Performance Engines?

Top-rated Performance Engines for your 1966 Mercury Comet based on customer reviews/ratings are:
289-302 Ford Head Bolt Kit
from $107.99
(7)
289-302 Ford Head Bolt Kit
“Great quality bolts. They include thread locker. Would definitely recommend to anyone replacing their heads.”
Chrome Dress-Up Kit
from $149.99
(1)
Chrome Dress-Up Kit
“I expected a better chrome plating/finish on this kit. However, for the money it is a good kit. I would recommend this for daily driver restoration ”
Cylinder Head Gasket: Steel Core Composite, Without Head Bolts
from $41.99
(1)
Cylinder Head Gasket: Steel Core Composite, Without Head Bolts
“Had to call and talk to 3 operators 3 separate times to get this straightened out .On item description should say 1 gasket requires 2.”