1981 Pontiac LeMans Performance Engines

HoleShot 3600 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) APPLICATION: HoleShot 3600 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) A higher than stock stall speed as delivered by the Holeshot converter will provide several advantages and benefits in vehicles with modified engines. Many modifications, particularly big cams, tend to reduce low end power and torque. The high stall converter allows the engine to launch the car at higher rpm where more torque is available. The Holeshot is generally a very good choice for the typical street machine that is looking for better launch capability and more strength. Street rods with modified engines will also benefit from a Holeshot converter. If your vehicle is equipped with a plate type nitrous system, you will need a Nitrous Holeshot!! Stall speed listings are based on engines producing 230lb. ft. of torque at 2,500 rpm. More torque at 2,500 rpm will give you more stall speed, less torque at 2,500 rpm will give you less stall speed than the stall speed ratings indicated. Furnace brazed impeller. New precision steel alloy pump drive tube. New heavy duty needle bearing between stator and impeller (not a thrust washer). Needle bearing between stator and turbine. Furnace brazed turbine. Dual pattern drive lugs on some GM Holeshots. New turbine hub. New springs and rollers in stator.

Product Features:

• Furnace Brazed Impeller
• Steel Alloy Pump Drive Tube
• Heavy Duty Needle Bearing
• Between Stator and Turbine
• Furnace Brazed Turbine
• Dual Pattern Drive Lugs
• New Turbine Hub
• New Springs/Rollers In Stator

HoleShot 2400 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) Application: HoleShot 2400 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) A higher than stock stall speed as delivered by the Holeshot c

Product Features:

• Furnace Brazed Impeller
• Steel Alloy Pump Drive Tube
• Heavy Duty Needle Bearing
• Between Stator and Turbine
• Furnace Brazed Turbine

Magnum 8.280" Long, .080" Wall, 3/8" Diameter Pushrod Set of 8

Magnum Pushrods from COMP Cams offer an affordable solution for your .080″ wall chromemoly pushrod needs. Designed to withstand the stresses of a high performance engine, Magnum Pushrods are head-treated for extended durability and have precision formed, reinforced ends. Magnum Pushrods are black-oxide finished with their part number and length laser etched onto the surface for easy identification.

Product Features:

• 3/8″ Diameter, 7.800″ Length
• Magnum Pushrods for Small Block Chevy
• One-piece .080″ wall chromemoly steel tubing
• Heat-treated for extended durability and guide plate compatibility
• Precision formed and reinforced pushrod end

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.

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.

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.

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

High Energy Timing Set for ’62-’77 B.O.P. 198-231 V6

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 Late-Model Choke; Waterneck; and HEI
• Accepts A/C And Alternator
• Accepts Exhaust Heated Chokes

Air gap cooler and denser mixture for more power. Street and high performance compatible. Available in cast, polished and endurashine finish.

Product Features:

• Based on C26 Low Profile with Unique Air Gap
• Air Gap Cooler and Denser Mixture for More Power
• 1.625 in. Taller Than Low-Profile PN[5425]
• Also Available In EnduraShine Finish PN[75254]
• Also Available As Complete Kit PN[2025/20254]
• Best When Matched with Edelbrock 500cfm Carburetor
• Use Fuel Line Kit PN[8088/8091]
• Use Progressive Throttle Linkage Kit PN[7094]

Mr. Gasket Steel Shim Cylinder Head Gaskets are for high performance street machines, drag racing and oval track racing. With today’s extreme compression ratios you need stronger more durable gaskets. Mr. Gasket steel shim gaskets are made from .020 inch steel shim stock which is thinner than most composite gaskets increasing engine compression. Stress formed embossments will seal the extreme cylinder pressure.

Product Features:

• Manufactured from .020″ steel shim stock.
• Thinner than composition head gaskets – increases engine compression.
• Stress formed embossments seal extreme cylinder pressures.
• For high performance street, drag race and oval track use.

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.

10 Degree Steel Retainer for 26120 Beehive Spring

Tool Steel 10 Degree Retainer Set Of 16 For All Valves With 1.250" O.D. Springs

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

VALVE SEALS, O-RING 11/32″ 1 ST

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.

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.

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

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 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

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

Product Features:

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

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

Product Features:

• Complete Kit: Includes Retainers And Locks
• Springs Made of Highest Quality Spring Wire
• Springs Precision Wound To Close Tolerances
• Includes Superior Quality Steel Retainers
• Includes 7 deg. Heat-Treated Valve Stem Locks
• Retainers and Locks Black Oxide Coated
• Non-Rotator Style: Dyno Tested and Street Proven
• Great Match to Edelbrock Camshaft Kit

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

Engine Valve Spring

Magnum 1.52 Rocker and HE Pushrod Kit for Chevrolet 262-400 Small Block

The original Ultra-Gold Aluminum Rockers changed the way racing and high performance street engine builders approached valve train design. Now, COMP Cams is revolutionizing valve train performance again with the next generation of Ultra-Gold ARC Series Al

Product Features:

• Precision-sorted trunnion bearings withstand valve spring pressure up to 700 lbs.
• CNC-machined, lightweight design removes weight and yields unrivaled quality and ratio accuracy
• Increase engine power, enhance valve train stability and improve oiling
• Designed for high performance street and race engines
• Arced channel & contoured top give the rockers the best strength to weight ratio possible

These COMP Cams Ultra-Gold Aluminum Roller Rocker Arms with a 3/8″ stud diameter and 1.6 ratio are designed for Chevrolet V8 265-400 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