from

$788.99

Dual Valve Springs from COMP Cams are manufactured from Super Clean wire and subject to extensive quality control testing to deliver a valve spring assembly with superior strength, durability and valve train stability, no matter what the application. The dual spring design creates a stronger valve spring that can easily handle the increased lift found in extreme stress applications. COMP Cams Dual Valve Springs exceed the expectations of today’s engine builders and racers.

Product Features:

Seat pressure: 112 lbs. @ 1.900″, Open Pressure: 355 lbs. @ 1.200″
O.D.: 1.509″, I.D.: 0.697″
Dual valve springs with damper

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$257.99

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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$27.49

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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$28.99

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

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$46.99

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

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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$39.99

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.
Standard and Low 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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$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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$457.99

Product Features:

Single Plane/Open Plenum Design
Square Flange Carb Mounting

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$403.99

Edelbrock part #5081 Torker II 351W intake manifold is designed for 1969 and later 351 Windsor Ford V8 high-performance engines with Edelbrock heads, OEM 12- or 16-bolt heads or equivalent. Will not fit “Boss 351” Cleveland. Manifold not equipped with EGR

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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$368.99

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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$426.99

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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$80.99

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

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$29.99

Product Features:

Timing Chain Only

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$43.99

Super Intake Manifold Bolts

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$19.99

Precision die cast, these water necks are first polished to a high luster, then chrome plated. Features an O-ring style seal to prevent water leaks. Comes with O-ring gasket and mounting bolts.

Product Features:

Chrome Plated
This Is A 45 Degree Neck
Comes With O-ring And Bolts
Has Small Hose Fitting On It

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$25.99

Precision die cast, these water necks are first polished to a high luster, then chrome plated. Features an O-ring style seal to prevent water leaks. Comes with O-ring gasket and mounting bolts.

Product Features:

Chrome plated
Features an O-Ring style seal to prevent water leaks
Includes O-Rings and mounting bolts

from

$30.49

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.

from

$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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$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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$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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$208.99

Edelbrock part #9655 Pushrods are designed for small-block Ford 289-302 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 precis

Product Features:

6.4 in. Length
0.312 in. Diameter
4130 Chromoly Steel Material
Black Oxide Finish
Made In The USA

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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$186.99

Product Features:

Head: 4.500″ Bore/0.048″ Thick/12.5cc Vol.
Intake: 1.98″x2.26″ Port/.060″ Thick
Exhaust: 1.50″x2.10″ Port
5/16″ Valve Cover
Multi Piece Configuration

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$49.49

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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$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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$87.19

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:

(16) Rocker Arm Nuts w/ Locks 3/8″-24 Threads
Shank O.D. .540″
Includes Locks and Hex Wrench
High-Quality Grade Steel
Heat-Treated For Ex Strength
Plated With Durable Gold Tone Finish

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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.

1981 Mercury Marquis Performance Engines

More 1981 Mercury Marquis Performance Engines

Essential 1981 Mercury Marquis Performance Engines

Competition Cams – VALVE SPRINGS, 1.509" DUAL 1 ST (Part No.924-16)

Competition Cams – Xtreme Energy 218/224 Hydraulic Flat Cam for Ford 221-302 (Part No.31-238-3)

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

Edelbrock – Front Timing Cover Gasket Set #6991 For Small-Block Ford, With Front Seal (Part No.6991)

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

FEL-PRO Performance – Lower Intake Manifold Gasket Set: 5 Piece Set (Part No.1246)

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

Weiand – X-CELerator; Intake Manifold (Part No.7516)

Edelbrock – Torker II Small Block Ford 351W Intake Manifold (Part No.5081)

Edelbrock – Performer-Plus Camshaft Kit for Big-Block Ford 429/460 V8 (Part No.2167)

Competition Cams – High Energy/Marine 218/218 Hydraulic Flat Cam and Lifter Kit for Ford 429,460 (Part No.CL34-227-4)

Edelbrock – Performer-Link Adjustable True-Roller Timing Chain Set (Part No.7808)

Edelbrock – TIMING CHAIN (Part No.7844)

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

Mr. Gasket – Water Neck (Part No.2662)

Mr. Gasket – Water Neck (Part No.2663)

FEL-PRO Performance – PERFORMANCE OIL PAN GASKET SET (Part No.1811)

FEL-PRO Performance – PERFORMANCE OIL PAN GASKET SET (Part No.1817)

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

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

Edelbrock – Pushrod Set for Ford 289-302 (Part No.9655)

FEL-PRO Performance – Cylinder Head Gasket: Steel Core Composite, Without Head Bolts (Part No.1020)

Edelbrock – Engine Gasket Set (Head / Intake / Exhaust / Valve Cover) for Ford (Part No.7365)

FEL-PRO Performance – Cylinder Head Gasket: Steel Core Composite, Without Head Bolts (Part No.1018)

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

Mr. Gasket – Ultra Seal: Sure-Lock Rocker Arm Nuts (Part No.923G)

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

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1981 Mercury Marquis Performance Engines

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