1981 Pontiac LeMans Performance Engines

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

Product Features:

• Case-Hardened Tubing
• Welded Ends
• 5/16 in. Diameter
• Use with or without Hardened Steel Guideplates

HYDRAULIC – Magnum: High performance. Biggest cam with stock converter but better with 2000+ stall. Use lower gears. Mild rough idle.

Product Features:

• HYDRAULIC – Magnum: High performance. Biggest cam with stock converter but better with 2000+ stall. Use lower gears. Mild rough idle.
• 270/270 Advertised Duration, 224/224 Duration @ .050″, .470″/.470″ Lift, 110 Lobe Separation
• Valve spring upgrade required
• Can be used with mild ratio rocker arms and traditional performance valve springs.

HYDRAULIC – Xtreme Energy: Very strong mid-range torque and throttle response, 2200+ stall.

Product Features:

• HYDRAULIC – Xtreme Energy: Very strong mid-range torque and throttle response, 2200+ stall.
• 274/286 Advertised Duration, 230/236 Duration @ .050″, .490″/.490″ Lift, 110 Lobe Separation
• Valve spring upgrade required
• Best performance with aftermarket intake manifolds, headers, lower gear ratios etc.

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

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:

• 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

Valve spring retainers for use OE cast iron heads. Superior quality heat-treated steel. Machined for strength with black oxide finish. Finish ensures rust and corrosion protection.

Product Features:

• Valve Spring Retainers for Use OE Cast Iron Heads
• Superior Quality Heat-Treated Steel
• Machined for Strength with Black Oxide Finish
• Finish Ensures Rust and Corrosion Protection

Edelbrock part #22015 Rollin’ Thunder camshaft kit is designed for 1957-86 small-block Chevy V-8 applications. This complete cam kits include an Edelbrock Rollin’ Thunder hydraulic roller camshaft, hydraulic roller lifters and pushrods. The Rollin’ Thunde

Product Features:

• Iron Camshaft Material
• 0.539 in. Intake Valve Lift with Factory Rocker Arm Ratio
• Roller Lifter Type
• Valve Springs Required
• Assembly Lubricant Included

Mag/Marine/Mag Muscle 230/230 Hydraulic Flat Cam/Lifter Kit Oldsmobile 260-455

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

Mr. Gasket screw-in rocker arm studs are manufactured from heat treated black oxide coated Grade 8 steel. Ideal for high performance street applications. OE style press in rocker studs can actually pull out of the cylinder head when using high lift camshafts. Includes sixteen studs 3/8-24 x 1.47 inch long top x 7/16-14 bottom.

Product Features:

• Black Oxide Coated Grade 8 Steel
• Kit Contains 16 Studs
• Easy To Install
• Heat Treated Steel
• Grade 8 Steel

These Magnum Roller Rocker Arms for Ford V8 289-351W (Rail Type) 1968-89 applications are the ultimate street rocker. With a 3/8″ stud diameter and 1.6 ratio, they are designed for serious performance enthusiasts. All Magnum Roller Rocker Arms are constructed from 8620 chromemoly steel, which is a superior material that will not flex and assures maximum lift. Their roller tip reduces friction, while stiff design and superior ratio accuracy yield more effective valve lift. With a 15 to 30 horsepower increase over other rocker arms, Magnum Roller Rockers are perfect for performance applications with less than 350 lbs. open spring pressure. Don’t accept inferior products or cheap knock-offs, look for the COMP Cams logo stamped into the underside of every Magnum Rocker.

Product Features:

• Ultimate street rocker designed for serious performance enthusiasts
• Constructed from 8620 chromemoly steel, a superior material that will not flex and assures maximum lift
• Roller tip reduces friction while stiff design and superior ratio accuracy yields more effective valve lift
• 15 to 30 horsepower increase over stock rocker arms
• Use in any applications with less than 350 lbs. open spring pressure

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

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

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

VALVE SEALS, O-RING 11/32″ 1 ST

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

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
• Dyno Tested And Street Proven
• Great Match to Edelbrock Camshaft Kit

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

Mr. Gasket Ultra-Seal Head Gaskets are a five layer (graphite core/perforated steel outer layers) composite construction. The graphite core has excellent thermoconductivity (transfers heat) away from hot spots in head preventing gasket burn-out. They provide excellent stability, compressibility and high temperature endurance. A high temperature silicone coating ensures sealing of engine fluids. Compatible with cast iron or aluminum heads, they will not brinell (indent) aluminum cylinder heads. Suitable for high performance street, drag race and oval track use. Sold individually.brbrGasket Bore 4.230 inch, Compressed thickness 0.038 inch

Product Features:

• Five layer (graphite core/perforated steel outer layers) composite construction
• Graphite core has excellent thermo-conductivity-transfers heat away from hot spots in head preventing gasket burn-out
• Provides excellent stability, compressibility and high temperature endurance
• Coated with high temperature silicone to ensure sealing of engine fluids
• Will not brinell (indent) aluminum cylinder heads
• For high performance street, drag race and oval track use
• Compatible w/High Octane Fuel
• Compatible With Exotic Fuel

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.

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.

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

Nitrous Holeshot Converters are Built with the same features as the other B&M Holeshots, with the addition of anti-balloon plates. The anti-balloon plates will allow these converters to stand up to the instant horsepower nitrous delivers.

Product Features:

• 2800-3200 RPM
• Small And Big Blocks
• Serious Performance
• Furnace Brazed
• Fully Balanced

Nitrous Holeshot Converters are Built with the same features as the other B&M Holeshots, with the addition of anti-balloon plates. The anti-balloon plates will allow these converters to stand up to the instant horsepower nitrous delivers.

Product Features:

• 3400-3800 RPM
• Small And Big Blocks
• Serious Performance
• Furnace Brazed
• Fully Balanced

HoleShot 3000 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) APPLICATION: HoleShot 3000 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