1973 Mercury Comet Performance Engines

Name: Performer Small-Block Ford 1.90" Cylinder Head Hydraulic Flat Tappet
Brand: Edelbrock
SKU: 60329
Price: 1087.99 USD

Keep Your 1973 Mercury Comet in Top Shape with Quality Performance Engines

Whether you’re repairing or upgrading your Performance Engine, using high-quality parts is key to keeping your 1973 Mercury Comet looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Performance Engine Valve Cover Gasket Sets, Performance Intake Manifolds, and Performance Engine Coolant Thermostats. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Performance Engines from Trusted Brands

Looking for a reliable Performance Engine? We’ve got you covered with options from brands you know and trust like FEL-PRO Performance, Competition Cams, and Edelbrock. For example, FEL-PRO Performance Performance Engines start at just $35.99 with an average 4.2 star rating. Competition Cams and Edelbrock offer similar pricing and quality, backed by strong customer feedback. With over 149 reviews and a solid 4 star average, you can shop with confidence knowing other Mercury Comet owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1973 Mercury Comet Performance Engine at Advance Auto Parts is around $232.77, with a range that starts at $7.99 and goes up to $1,087.99. With 158 options in stock from 5 trusted brands, finding the right fit is easy. Popular picks like High Performance Thermostat, Intake Manifold Gasket for 1963-1996 Small-Block Fords, and 289-302 Ford Head Bolt Kit start at just $30.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Performance Engine, don’t forget to check out other key components like Performance Distributors and Performance Fuel Systems. At Advance Auto Parts, we’re here to help you keep your 1973 Mercury Comet in peak condition, inside and out.

Looking for the perfect Performance Engine for your 1973 Mercury Comet? You’re in the right place. Below, you’ll find links to various types of Performance Engines that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Performance Engines, ensuring durability and a precise fit for your Mercury Comet. Whether you’re driving a 1973 model or another popular model year like 1967, 1968, 1969, 1971, 1972, 1974, 1975, 1976, and 1977, we’ve got you covered. Purchasing Performance Engines from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Performance Engines that fit your vehicle.

Essential 1973 Mercury Comet Performance Engines

from

$1087.99

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
Intake Valves Are For Use w/Stock Pistons

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$230.99

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 stock 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

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$367.99

Designed to deliver an aggressive, hard-hitting exhaust note at idle, the Thumpr camshaft series from COMP Cams also delivers excellent horsepower gains and a broad torque curve. A perfect choice for muscle cars and street rods.

Product Features:

Early intake valve opening and long exhaust duration create optimum overlap for powerful, hard-hitting exhaust note.
Best with aftermarket converters and more rear gear.
Three unique cam designs for each application that deliver excellent horsepower gains and broad torque curve; perfect choice for muscle cars and street rods.

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$249.99

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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$48.99

This Mr. Gasket Rear Main Seal is made from silicone to allow the seal to handle extreme engine oil temperature. It also provides for an upgrade for that leaky rope style seal and is a direct replacement for a rubber main seal. It’s also injection molded for a precise fit.

Product Features:

Repairs That Leaky Rear Main Sail
Silicone Rubber to Withstand Extreme Engine Oil Temperatures
Upgrade for Rope Seal Equipped Cars or Direct Replacement for Rubber Main Seal
Injection Molded for Precise Fit

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$65.99

Product Features:

Cylinder Head Gasket Set
1958-1976 390-428

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$29.99

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

Product Features:

Blue Stripe performance cork-rubber gaskets use cork particles evenly distributed throughout a rubber binder resulting in a compressible gasket without leak paths.
Not intended for use in emission controlled vehicles.

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$675.99

A higher than stock stall speed as delivered by a B&M Converter will provide several advantages. The high stall converter allows the engine to launch the car at a higher RPM where more torque is available and increased strength. Due to torque converter co

Product Features:

New Precision Pump Drive Tube
Pressure Tested
Fully Balanced
Needle Thrust Bearing
New Thrust Washer

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$68.99

High performance, race quality gasket with molded rubber coating over a steel core. Steel core provides rigidity and durability, preventing prevent push out while the molded rubber coating helps seal minor oil pan rail irregularities. The one piece design eliminates the need for separate end seals to make installation easier and even further reduce the possibility of oil leakage. Provides excellent sealing and durability. Excellent replacement for stock original equipment, high performance street, drag race and oval track. Includes gasket and new oil pan bolts.

Product Features:

Steel core provides rigidity, durability and prevents gasket push out
Molded rubber coating seals minor irregularities in pan surface
One piece design is easier to install and even less prone to leak
Direct replacement suitable for all uses – street, racing, heavy duty
Include both gasket and new oil pan bolts
No Cork Particles
Easy Removal For Disassembly

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$257.99

Single Outer Valve Springs from COMP Cams allow you to build the perfect spring assembly for your application. The valve spring creation process is far more involved than most people realize. Selecting the right metal stock and creating the best design is not done by chance. COMP Cams has developed a process that creates the highest quality valve spring available. The result is a product that meets and exceeds the expectations of today’s engine builders and racers.

Product Features:

Seat pressure: 115 lbs. @ 1.700″, Open Pressure: 284 lbs. @ 1.200″
O.D.: 1.437″, I.D.: 1.039″
Single valve springs with damper
Approximately .510″ max lift at recommended installed height

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$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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$200.99

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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$31.99

Mr. Gasket High Performance Thermostats are designed to resist large variations of coolant pressure at high RPM (revolutions per minute). This allows them to fully open at correct temperature consistently regardless of engine RPM. The design also provides the high flow that engines operated a higher RPM need. This thermostat also features a copper/brass construction to further resist corrosion. Mr. Gasket High Performance / High Flow Thermostats are suitable for street, drag race, or oval track applications.

Product Features:

Opens At 195 Degrees
Designed to Resist Large Variations of Coolant Pressure at High RPM
Fully Opens at Correct Temperature Consistently Regardless of Engine RPM
For High Performance Street, Drag Race, and Oval Track
Copper & Brass Construction – Resists Corrosion
High Flow

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$29.49

Opens at 160 Degrees
Designed to Resist Large Variations of Coolant Pressure at High RPM
Fully opens at Correct Temperature Consistently Regardless of engine RPM
For High Performance Street, Drag Race, and Oval Track
Copper & Brass Construction – Resists Corrosion
High Flow

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$654.99

Featuring a quicker valve opening, the Xtreme Energy camshaft profile provides increased responsiveness and more area under the lift curve than older, slower grinds. Designed to increase performance without sacrificing driveability and creature comforts.

Product Features:

Excellent performance in street carbureted applications.
More vacuum allows an increase in duration for improved performance and assists power brakes.
Quicker opening lobe profiles deliver increased responsiveness and more area under the lift curve.
Best performance with aftermarket intake manifolds, headers, lower gear ratios etc.

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$392.99

Product Features:

Designed for Optimum Torque and Acceleration
Maximum Performance From Idle through Mid-Range
Matched to Edelbrock Performer Intakes
Includes Hydraulic Lifters and Assembly Lube
Major Improvement in Throttle Response and Torque
Use For Daily Drivers/Trucks/Vans/RVs/4x4s
Take The Guesswork Out Of Camshaft Selection

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$417.99

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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$458.99

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 one direction for optimum efficiency. In the early days of the automotive performance industry, you either ran what was available, or you fabricated something you thought met your needs. Such needs were the building blocks of this industry, and it was through the efforts of many that we have the automotive aftermarket, but it was through the work of one name in particular to which many in the industry owe a great debt, and that name is Edelbrock.

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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$50.99

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

Product Features:

Fel-Pro performance intake manifold gaskets have been tested with virtually all aftermarket cylinder head and intake manifold combinations.
Performance intake manifold gaskets designed without a metal core, to allow engine builders to trim the gasket for exact fit on modified ports.
Medium riser
Printoseal elastomeric sealing beads to provide extra sealing strength around the intake port.
Not intended for use in emission controlled vehicles.

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$35.99

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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$106.99

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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$141.99

Product Features:

Use W/ Valve Springs Part #5722, 5796
Set of 16
1.50 in. Outside Diameter
Steel Material
Black Oxide Finish

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$454.99

Edelbrock Part #7521 RPM Air-Gap intake manifold is designed for the small-block 302 CID Ford V8 or 331-347 stroker applications. The RPM Air-Gap incorporates the same race-winning technology that?s been used on our Victor Series competition intakes and i

Product Features:

RPM Air-Gap for 302-331-347 Small-Block Ford V8
Air-Gap design features an open air space under the plenum
Separates fuel and air from engine heat
Larger runners over standard 7121 manifold
Includes nitrous bosses

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$314.99

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
Available in Multiple Finishes

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$402.99

Product Features:

For Idle to 5500 RPM Street-Driven Performance
Stock Replacement
50-State Street Legal

Popular 1973 Mercury Comet Performance Engines Categories

Performance Engine Coolant Thermostats

Performance Intake Manifolds

Performance Engine Water Pumps

Performance Engine Cylinder Head Gaskets

Performance Engine Camshaft and Lifter Kits

Performance Engine Intake Manifold Gaskets

Performance Engine Timing Sets and Components

Performance Engine Valve Springs

Performance Engine Valve Cover Gasket Sets

Performance Engine Rocker Arms

Performance Engine Camshafts

Performance Engine Oil Pan Gaskets

Performance Engine Valve Lifters

Performance Engine Main Bearing Gasket Sets

Performance Engine Cylinder Head Bolts

Performance Engine Push Rod Guideplates

Performance Engine Push Rods

Performance Engine Valve Spring Retainer

Performance Torque Converters

Performance Engine Cylinder Heads

Performance Engine Valve Stem Seal Sets

Most Popular Performance Engine Valve Cover Gasket Sets for 1973 Mercury Comets

Enhance your 1973 Mercury Comet with one of the 5 Performance Engine Valve Cover Gasket Sets we have in stock, starting at just $25.49.

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$50.99

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:

Rigid core, molded silicone rubber gaskets provide for ease of installation, and are great for on-again/off-again situations (like setting valve lash).
Features high-tech silicone material for long life, a solid steel core for strength and durability, and stainless steel compression limiters to prevent
Not intended for use in emission controlled vehicles.

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$41.99

Ultra-Seal is Mr. Gasket premium valve cover gasket material. It’s manufactured from a high density cork and rubber blend with a black latex coat applied to the outside to help seal minor flange irregularites and eliminate oil leakage. It creates a positive seal by controlled swelling of the gasket material when exposed to hot oil. For original equipment replacement, high performance street, drag race and oval track use. Sold as a pair. These gaskets are .187 inch thick.

Product Features:

Manufactured from high-density cork /rubber blend gasket material
A black latex rubber coating is applied to outside of gasket to help seal minor flange irregularities and eliminate the possibility of oil leakage
Creates a positive seal by controlled swelling of the gasket material when exposed to hot engine oil
For OE replacement, high performance street, drag race and oval track
.187″ thick
Handles Ex Flange Pressure
Forms Leak Proof Seal
Black Latex Coating

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$34.99

Mr. Gasket Performance Valve Cover Gaskets are high-density cork/rubber blend gaskets that use evenly sized cork particles distributed evenly throughout the rubber binder. The result is a compressible valve cover gasket without leak paths. These gaskets create a positive seal by controlled swelling of the gasket material when exposed to hot engine oil. Provides excellent flange sealing and durability. For original equipment replacement, high performance street, drag race and oval track use.

Product Features:

Manufactured from high-density cork/rubber blend gasket material
Provides excellent sealing and durability
For OE replacement, high performance street, drag race and oval track use

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$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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$29.99

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

Product Features:

Blue Stripe performance cork-rubber gaskets use cork particles evenly distributed throughout a rubber binder resulting in a compressible gasket without leak paths.
Not intended for use in emission controlled vehicles.

Best-Selling 1973 Mercury Comet Performance Intake Manifolds

Upgrade your Comet with one of our 3 best-selling Performance Intake Manifolds.

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from

$314.99

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
Available in Multiple Finishes

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$359.99

Product Features:

Best for the Ultimate in Street High-Performance
Designed for 1500 to 6500 RPM Street-Driven Power
Dual-Plane High-Rise Intake w/180 deg Firing Order
Produces Incredible Top-End Horsepower
Retains Good Throttle Response and Acceleration
Larger Plenum and Runners Maximizes Other Upgrades

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$454.99

RPM Air-Gap for 302-331-347 Small-Block Ford V8
Air-Gap design features an open air space under the plenum
Separates fuel and air from engine heat
Larger runners over standard 7121 manifold
Includes nitrous bosses

Top-Quality Performance Engine Coolant Thermostats for 1973 Mercury Comets

Choose a high-quality OEM or aftermarket Performance Engine Coolant Thermostat for Mercury Comets and enjoy top-notch performance from $29.49.

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from

$29.99

Opens At 180 Degrees
Designed to Resist Large Variations of Coolant Pressure at High RPM
Fully Opens at Correct Temperature Consistently Regardless of Engine RPM
For High Performance Street, Drag Race, and Oval Track
Copper & Brass Construction – Resists Corrosion
High Flow

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$29.49

Opens at 160 Degrees
Designed to Resist Large Variations of Coolant Pressure at High RPM
Fully opens at Correct Temperature Consistently Regardless of engine RPM
For High Performance Street, Drag Race, and Oval Track
Copper & Brass Construction – Resists Corrosion
High Flow

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$31.99

Opens At 195 Degrees
Designed to Resist Large Variations of Coolant Pressure at High RPM
Fully Opens at Correct Temperature Consistently Regardless of Engine RPM
For High Performance Street, Drag Race, and Oval Track
Copper & Brass Construction – Resists Corrosion
High Flow

Top Picks for 1973 Mercury Comet Performance Engine Cylinder Head Gaskets

Invest in one of our 2 durable Performance Engine Cylinder Head Gaskets for your 1973 Mercury, knowing you’re getting trusted brands and expert craftsmanship.

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$52.99

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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$130.99

Edelbrock part No. 7341 head gasket is intended for Ford 302 E-Boss and 351w E-Boss (Clevor) conversions using Edelbrock No. 61699 heads. This gasket comes as a set and has a 4.100″ bore size, .041″ compressed thickness and 9.2 cc volume.

Top-Rated Performance Engine Intake Manifold Gaskets for 1973 Mercury Comets

Make a smart move for your 1973 Mercury Comet with products all priced from $30.99 to $174.99.

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from

$35.99

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

from

$30.99

Product Features:

Clean Positive Seal
Embossed Silicone Bead Surrounding The Port
Matched To Manifolds And Cylinder Heads

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$174.99

Available in different sizes for many different vehicle models/years. Clean positive seal. Embossed silicone bead surrounding the port. Matched to manifolds and cylinder heads. In the early days of the automotive performance industry, you either ran what

Product Features:

Clean positive seal
Embossed Silicone Bead Surrounding The Port
Matched To Manifolds And Cylinder Heads
Fits 1963-96 289/302/351W Engines
10-Pack Of Gaskets

Top-Rated Performance Engine Brands For Your 1973 Mercury Comet

When it comes to finding the perfect Performance Engine for your 1973 Mercury Comet, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 5 trusted brands. We carry the most popular Performance Engine brands including Edelbrock, FEL-PRO Performance, and Competition Cams, and more, all known for their exceptional customer ratings (average brand rating of 4.4 stars) and competitive prices, as low as $30.99. Purchasing a Performance Engine from us here at Advance Auto Parts is a smart move for both you and your 1973 Mercury Comet, providing peace of mind with parts that meet or exceed OEM standards.

Popular Edelbrock 1973 Mercury Comet Performance Engines

If you’re looking for a top-quality Performance Engine for your 1973 Mercury Comet, Advance Auto Parts has exactly what you need with our selection of Edelbrock Performance Engines. We have 1 Edelbrock Performance Engines in stock for this fitment, all known for their durability and precision fit. With prices starting at just $30.99, you’ll find the perfect Performance Engine for your needs and budget. Edelbrock Performance Engines for the 1973 Mercury Comet come highly rated, with over 1 customer reviews and an impressive average rating of 4.4 stars. Choosing a Edelbrock Performance Engine from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.

from $30.99

(1)

Intake Manifold Gasket for 1963-1996 Small-Block Fords

“Minor fitment corrections to line up with my AFR185 heads and Victor Jr Intake.”

Top-Quality FEL-PRO Performance 1973 Mercury Comet Performance Engines

For those in search of a high-quality Performance Engine for their 1973 Mercury Comet, Advance Auto Parts offers a great selection of FEL-PRO Performance Performance Engines. With 3 FEL-PRO Performance Performance Engines in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Performance Engines start at just $35.99, with an average price of $46.66, giving you a range of options to suit your budget. Backed by over 7 customer ratings and an average rating of 4.2 stars, FEL-PRO Performance Performance Engines provide both reliability and excellent performance. Choosing a FEL-PRO Performance Performance Engine from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.

from $50.99

(1)

Engine Valve Cover Gasket Set

“good”

from $52.99

(2)

Cylinder Head Gasket: Steel Core Composite, Without Head Bolts

“cometic head gasket is great but prob is dose not seal if the block isn’t mirror finished. many people switch over to felpro and it has worked out gre”

from $35.99

(4)

Lower Intake Manifold Gasket Set: 11 Piece Set

“Great overall intake gasket!!”

FAQs for 1973 Mercury Comet Performance Engines

What are the best-selling Performance Engines for 1973 Mercury Comets?

Out of 158 Performance Engines that fit 1973 Mercury Comets, the following parts are the top sellers:

High Performance Thermostat (22903641) – $31.99
Intake Manifold Gasket for 1963-1996 Small-Block Fords (22342074) – $30.99
289-302 Ford Head Bolt Kit (17140521) – $107.99

What’s the price range for 1973 Mercury Comet Performance Engines?

The prices of Performance Engines for the 1973 Mercury Comet range from $7.99 up to $1,087.99 for the most premium parts.

What is the average price of a Performance Engine for a 1973 Mercury Comet?

The average price for Performance Engines for the 1973 Mercury Comet is $232.77. Keep in mind the variety of part types within our Performance Engine category, where you are likely to find a wide range of prices across a variety of parts and components.

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

Yes, we carry Performance Engines for 15 model years of Mercury Comets between 1960 and 1977. The following model years are the most popular for Performance Engine purchases: 1977, 1976, 1975, 1974, 1972, 1971, 1969, 1968, and 1967.

What are the cheapest Performance Engines for my 1973 Mercury Comet?

The cheapest 1973 Mercury Comet Performance Engines we carry are:

High Energy 6.881" Long, 5/16" Diameter Pushrod (50289324) – $7.99
High Energy 8.350" Long, 5/16" Diameter Pushrod (50289658) – $7.99
Flat 1 Piece Guide Plate for Ford 289-351W with 5/16" Pushrod and 7/16" Stud (50288902) – $7.99
High Energy 6.400" Long, 5/16" Diameter Pushrod (50289676) – $8.99
Flat 1 Piece Guide Plate for Ford 289-351W with 3/8" Pushrod and 7/16" Stud (50288866) – $8.99

Does Advance Auto Parts sell Performance Engines for any other 1973 Mercury models?

Yes. We stock Performance Engines for 5 other popular 1973 Mercury models. Some of the most popular are 1973 Cougar Performance Engines, 1973 Monterey Performance Engines, 1973 Colony Park Performance Engines, 1973 Montego Performance Engines, and 1973 Capri Performance Engines.

What types of Performance Engines do you sell for my 1973 Mercury Comet?

As of 11/2/25, these are some of the most in-demand types of Performance Engines for a 1973 Mercury Comet:

Can I get help with 1973 Mercury Comet Performance Engine orders?

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

What is your return policy for Mercury Comet Performance Engines?

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

1973 Mercury Comet Performance Engines

Edelbrock – Performer Small-Block Ford 1.90" Cylinder Head Hydraulic Flat Tappet (Part No.60329)

Competition Cams – Set of 16 Umbrella Valve Seals for Stock Guide Size, 11/32" Valve Stem (Part No.502-16)

Competition Cams – Mutha’ Thumpr 235/249 Hydraulic Flat Cam (Part No.31-602-5)

Competition Cams – ROCKER ARMS, DIE CAST ALUM SMALL BLOCK FORD 1.6 1 ST (Part No.17043-16)

Mr. Gasket – Rear Main Seal Gasket (Part No.1963)

Edelbrock – Cylinder Head Gasket Set for Ford (Part No.7337)

FEL-PRO Performance – Engine Valve Cover Gasket Set (Part No.1613)

B & M – Torque Converter, Tork Master 3000 (Part No.50442)

Mr. Gasket – Ultra Seal: Oil Pan Gasket (Part No.6683)

Competition Cams – VALVE SPRINGS, 1.437" SINGLE 1 ST (Part No.942-16)

Edelbrock – 289-302 Ford Head Bolt Kit (Part No.8552)

Edelbrock – Pushrod Set for Ford 351W (Part No.9659)

Mr. Gasket – High Performance Thermostat (Part No.4365)

Mr. Gasket – High Performance Thermostat – 160 Degree Brass & Copper (Part No.4363)

Competition Cams – Xtreme Energy 212/218 Hydraulic Flat Cam K-Kit (Part No.K33-234-4)

Edelbrock – Performer-Plus Camshaft Kit for Ford FE 352-428 V8 (Part No.2106)

Edelbrock – Water Pump Ford 1965-67 289 cid Polished (Part No.8847)

Edelbrock – Water Pump for Small-Block Ford 351W in Polished Finish (Part No.8848)

FEL-PRO Performance – Lower Intake Manifold Gasket Set: 5 Piece Set (Part No.1247)

FEL-PRO Performance – Lower Intake Manifold Gasket Set: 11 Piece Set (Part No.1250)

Edelbrock – Performer Series Retainer (Qty 16) (Part No.9724)

Edelbrock – Performer Series Retainer (Qty 16) (Part No.9733)

Edelbrock – RPM Air-Gap #7521 Intake Manifold for Small-Block Ford 302-331-347 V8 (Part No.7521)

Edelbrock – Performer 289 Intake Manifold for Small-Block Ford (Part No.2121)

Edelbrock – Performer 351-W Intake Manifold for S/B Ford 351 Windsor (Part No.2181)

FEL-PRO Performance – Engine Valve Cover Gasket Set (Part No.1684)

Mr. Gasket – Ultra Seal: Valve Cover Gasket Set (Part No.5870)

Mr. Gasket – Valve Cover Gasket Set (Part No.276)

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

FEL-PRO Performance – Engine Valve Cover Gasket Set (Part No.1613)

Edelbrock – Performer 289 Intake Manifold for Small-Block Ford (Part No.2121)

Edelbrock – Performer RPM Ford Small Block 302 Intake Manifold (Part No.7121)

Edelbrock – RPM Air-Gap #7521 Intake Manifold for Small-Block Ford 302-331-347 V8 (Part No.7521)

Mr. Gasket – High Performance 180 Degree Thermostat for Increased Flow (Part No.4364)

Mr. Gasket – High Performance Thermostat – 160 Degree Brass & Copper (Part No.4363)

Mr. Gasket – High Performance Thermostat (Part No.4365)

FEL-PRO Performance – Cylinder Head Gasket: Steel Core Composite, Without Head Bolts (Part No.1011-1)

Edelbrock – Cylinder Head Gasket Set for Ford (Part No.7341)

FEL-PRO Performance – Lower Intake Manifold Gasket Set: 11 Piece Set (Part No.1250)

Edelbrock – Intake Manifold Gasket for 1963-1996 Small-Block Fords (Part No.7220)

Edelbrock – Intake Manifold Gasket for 1963-1996 Small-Block Fords (Part No.72208)