1973 Mercury Comet Performance Engines

Essential 1973 Mercury Comet Performance Engines

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

Performer Series Retainer (Qty 16)

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$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 – Ultra Seal: Intake Gasket (Part No.5834)

Ultra Seal: Intake Gasket

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$38.59
Ultra-Seal intake manifold gaskets are manufactured from cellulose/nitrile composition gasket material. Provides excellent sealing and durability. Incorporates Silicone beading around each intake and water outlet port to provide additional sealing strength on both sides of each gasket. No gasket sealer required. For OE replacement, high performance street, drag race and oval track use. Includes manifold end seals and distributor gasket.

Product Features:
  • Manufactured from cellulose/nitrile composition gasket material
  • Provides excellent sealing and durability
  • Silicone beading on both sides of each gasket
  • Complete with manifold end seals and distributor gasket
  • For OE replacement, high performance street, drag race and oval track use
  • Creates Tight Leak proof Seal
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Competition Cams – Xtreme Energy 240/246 Hydraulic Flat Cam (Part No.35-250-4)

Xtreme Energy 240/246 Hydraulic Flat Cam

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$284.99
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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Edelbrock – Torker II 302 Intake Manifold Small-Block Ford (Part No.5021)

Torker II 302 Intake Manifold Small-Block Ford

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$376.99
2500-6500 RPM high-performance street engines. Single-plane low-rise intake good for high RPM. Ideal for applications with limited hood clearance. For top-end HP and adequate throttle response. Available in cast or polished.

Product Features:
  • 2500 to 6500 RPM High Performance Street Engines
  • Single-Plane Low-Rise Intake Good for High RPM
  • Ideal for Applications with Limited Hood Clearance
  • For Top-End HP and Adequate Throttle Response
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B & M – Torque Converter, Tork Master 3000 (Part No.50442)

Torque Converter, Tork Master 3000

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$587.99
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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Mr. Gasket – Cam Change Gaskets (Part No.4410)

Cam Change Gaskets

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$63.09
If you want to update just your camshaft and aren’t doing a complete engine overhaul, this kit contains all the gaskets needed to change out your camshaft. That way you don’t have to buy a complete gasket kit just to change the cam, but still can replace all the gaskets you should in the process.

Product Features:
  • Contains all the gaskets needed to change out your camshaft
  • Fuel Injector O-Ring Not Included
  • Meets Performance Standards
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FEL-PRO Performance – Engine Valve Cover Gasket Set (Part No.1614)

Engine Valve Cover Gasket Set

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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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Edelbrock – Engine Cylinder Head (Part No.60319)

Engine Cylinder Head

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$692.99
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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Mr. Gasket – Super Intake Manifold Bolts (Part No.6082)

Super Intake Manifold Bolts

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$43.99
Super Intake Manifold Bolts

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

High Performance 180 Degree Thermostat for Increased Flow

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$26.99
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 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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Edelbrock – Performer-Link Adjustable True-Roller Timing Chain Set (Part No.7820)

Performer-Link Adjustable True-Roller Timing Chain Set

from

$67.99


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
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Edelbrock – Complete Sure Seat Valve Spring Kit for Ford 289-302 & 351W V8 (Part No.5796)

Complete Sure Seat Valve Spring Kit for Ford 289-302 & 351W V8

from

$186.99
Product Features:
  • Non-Rotator
  • 1.438 in. Outside Diameter
  • 1.024 in. Inside Diameter
  • 1.260 in. Coil Blind
  • Set of 16
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Edelbrock – Pushrod Set for Small Block Ford 289-302 (Part No.9632)

Pushrod Set for Small Block Ford 289-302

from

$210.99
Product Features:
  • Case-Hardened Tubing
  • Surface Hardening
  • Welded Ends
  • 0.3125 in. Diameter
  • Use with or without Hardened Steel Guideplates
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Competition Cams – PUSHROD SET, SBF HIGH ENERGY 1 ST (Part No.7831-16)

PUSHROD SET, SBF HIGH ENERGY 1 ST

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$75.99
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
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Competition Cams – Ultra-Gold ARC Rocker Set w/ 1.6 Ratio for Ford 289-351W w/ 3/8" Stud (Part No.19043-16)

Ultra-Gold ARC Rocker Set w/ 1.6 Ratio for Ford 289-351W w/ 3/8" Stud

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$427.99
These COMP Cams Ultra-Gold Aluminum Roller Rocker Arms with a 3/8″ stud diameter and 1.6 ratio are designed for Ford V8 289-302-351W applications. The new modern design features of these Ultra-Gold Rockers are proven to withstand extremely aggressive spring pressure and valve lift. Designed specifically for high performance street and race engines, the Ultra-Gold Aluminum Rocker Arms are precision CNC-machined to strict tolerances. Developed to meet the demands of professional engine builders, these rockers include features never before possible in an aluminum rocker arm.

Product Features:
  • CNC-machined, lightweight design removes weight and yields unrivaled quality and ratio accuracy
  • Designed for high performance street and race engines
  • Precision-sorted trunion bearings withstand elevated valve spring pressure and valve lift
  • Additional clearance, up to 1.650″ O.D. valve spring
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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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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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Mr. Gasket – Ultra Seal: Oil Pan Gasket (Part No.6683)

Ultra Seal: Oil Pan Gasket

from

$59.19
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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Mr. Gasket – Ultra Seal: Harmonic Balancer Bolt/Washer Kit (Part No.7847)

Ultra Seal: Harmonic Balancer Bolt/Washer Kit

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$38.49
Mr. Gasket Harmonic Balancer Bolt for Ford V8 except 351C. Fits 221,260,289,302,351W small block Windsor engines, 332,352,360,390,406,410,427,428 FEs, and 429,460 385 series big blocks. 5/8-18 x 2 inch long heat treated black oxide coated Grade 8 alloy steel with a thick parallel ground washer to provide accurate, uniform torque.

Product Features:
  • Heat treated black oxide coated Grade 8 alloy steel
  • Thick parallel ground washer provides more accurate, uniform torque
  • Hex Prevents Socket Slippage
  • Accurate And Uniform Torque
  • Black Plated Finish
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Mr. Gasket – Rear Main Seal Gasket (Part No.1963)

Rear Main Seal Gasket

from

$42.49
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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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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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 for Small-Block Ford in Polished Finish (Part No.8846)

Water Pump for Small-Block Ford in Polished Finish

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$381.99
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 – Water Pump Ford 1965-67 289 cid (Part No.8842)

Water Pump Ford 1965-67 289 cid

from

$285.99
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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Mr. Gasket – Head Gasket (Part No.1132G)

Head Gasket

from

$37.59
Mr. Gasket Embossed Steel Shim Cylinder Head Gaskets are for high performance street machines, drag racing and oval track racing. This is a very unique design that has a solid metal on metal fold at the combustion seal. This fold makes for a very stout seal that is almost the equivalent of a higher-end MLS (multi-layer steel) gasket with a gas stopper layer, but at a much lower cost. This gasket also has embossments around the coolant and oil passages and has a thick aluminum flake coating. All of these features result in a steel shim head gasket that handles extreme cylinder pressures very well. It’s probably the best steel shim head gasket you could ask for. Sold individually.

Product Features:
  • Embossed steel with aluminum flake coating
  • Solid metal over metal fold at the combustion seal
  • Embossed seals at coolant and oil passages
  • Approximately .020″ compressed thickness
  • For high performance street, drag race and oval track use.
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Edelbrock – Cylinder Head Gasket Set for Ford (Part No.7337)

Cylinder Head Gasket Set for Ford

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$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.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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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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1973 Mercury Comet Performance Engines

Maybe you’re in the middle of a full rebuild of that 1973 Mercury Comet. Maybe you just need a couple of Performance Engines. Either way, Advance Auto Parts has 42 different Performance Engines in our inventory ranging from $19.99 to $1,035.99. That means you can find the exact parts or products you need to keep that 1973 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 1973 Mercury Comet. Mr. Gasket, FEL-PRO Performance, 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 1973 Mercury Comet, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 101 reviews in this category, some of the top rated parts include 289-302 Ford Head Bolt Kit with 2.0 stars and ROCKER ARMS, DIE CAST ALUM SMALL BLOCK FORD 1.6 1 ST with 1.0 stars.

So if you’re in the market for aftermarket Performance Engines to keep your 1973 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 1973 Mercury Comet Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 1973 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 FEL-PRO Performance Performance Engines

We carry FEL-PRO Performance parts in our stock across Performance Engine Intake Manifold Gaskets and Performance Engine Valve Cover Gasket Sets categories, plus more. For a 1973 Mercury Comet, our most popular FEL-PRO Performance Performance Engines 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
Engine Valve Cover Gasket Set
from $46.99
(1)
Engine Valve Cover Gasket Set
Performance Engine Valve Cover Gasket Sets
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 1973 Mercury Comet Performance Engines

What are the most purchased Performance Engines for the 1973 Mercury Comet?

Out of 42 Performance Engines for the 1973 Mercury Comet, the most popular in our inventory are:
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
Performer-Link Adjustable True-Roller Timing Chain Set
from $67.99
This product is not rated
Performer-Link Adjustable True-Roller Timing Chain Set
Performance Engine Timing Sets and Components
Ultra Seal: Harmonic Balancer Bolt/Washer Kit
from $38.49
This product is not rated
Ultra Seal: Harmonic Balancer Bolt/Washer Kit
Performance Engine Harmonic Balancers

What are the top-rated 1973 Mercury Comet Performance Engines?

Top-rated Performance Engines for your 1973 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.”
ROCKER ARMS, DIE CAST ALUM SMALL BLOCK FORD 1.6 1 ST
from $237.99
(1)
ROCKER ARMS, DIE CAST ALUM SMALL BLOCK FORD 1.6 1 ST
“These things break very easy. Not a big fan of the soft brass when trying to install them with the screwdriver head they use. Change it hex and it woy”
Sure Seat Valve Springs for Ford 429/460 V8 1969-1987
from $111.99
(1)
Sure Seat Valve Springs for Ford 429/460 V8 1969-1987
“THIS WAS NOT A COMPLETE KIT!ONLY GOT VALVE SPRINGS!!!”