from

$522.99

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, the Thumpr series’ early i

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.

from

$299.99

Torque Converter – Tork Master 2000 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) APPLICATION: Tork Master 2000 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) The Tork Master is B&M’s lowest cost

Product Features:

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

from

$494.99

Product Features:

3500-8000 RPM Range
Single Plane Type-4500 Style Flange
6.77 in. Front Height, 6.77 in. Center Height, 6.77 in. Rear Height
Satin Finish
For Raised Port 23 Degree Heads

from

$927.99

The Edelbrock #609019 Performer cylinder head is designed for 302, 327, 350 and 400 cid small-block Chevy engines up to 1986. This cylinder head includes your choice of 64cc (In order to retain stock compression ratio on 1970 and earlier small-blocks) or

from

$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

from

$36.99

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

Product Features:

Fluoroelastomer compound combines optimum resistance to heat, oils and abrasion for longivity.
Optimizes performance under high crankcase vacuum conditions, elevated temperatures and high RPM levels.
Not intended for use in emission controlled vehicles.
Not intended for use in emission controlled vehicles.

from

$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

from

$14.99

Dowel pins are precision machined and case hardened for accurate head alignment. Two per set. 5/16 inch x 5/8 inch

Product Features:

Precision Machined
Case Hardened
Give Accurate Alignment
2 Per Set

from

$23.49

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.

from

$35.99

Product Features:

Valve Cover Gasket

from

$334.99

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

from

$622.99

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.

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.

from

$95.99

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

from

$99.99

Product Features:

Use W/ Valve Springs Part #5703, 5794
Set of 16
1.50 in. Outside Diameter
Steel Material
Black Oxide Finish

from

$52.99

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.

from

$64.99

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 4.190 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

from

$23.79

Spectre’s Chevrolet late model water neck offers the normal angled water neck and a 1/2 inch NPT threaded hole for a by-pass hose. This water neck has a chrome plated finish for a lasting look great and includes the bolts.

Product Features:

Fits Chevy engines
Includes a 1/2 inch NPT threaded hole for by-pass hose
Includes bolts
Chrome plated
Easy to install
O-ring/gasket not included

from

$26.99

Spectre’s Oldsmobile V8 water neck fits Oldsmobile 330, 350, 425 and 455 engines. This water neck has been designed around the OEM specifications and has a chrome plated finish for a lasting look that fits great. This water neck has an additional by-pass hose connection and includes the bolts.

Product Features:

Fits Oldsmobile 330, 350, 425 and 455 engines
Chrome plated
Bolts included
Designed for OEM fit
Easy to install
O-ring/gasket not included

from

$40.19

Mr. Gasket Performance Intake Gaskets are manufactured from cellulose/nitrile composition gasket material. They provide excellent sealing and durability. Can be trimmed if necessary for modified port applications. For original equipment replacement, high performance street, drag race and oval track.

Product Features:

Manufactured from cellulose/nitrile composition gasket material.
Provides excellent sealing and durability.
Can be trimmed if necessary for modified port applications.
Complete with manifold end seals and distributor gasket.
For OE replacement, high performance street, drag race and oval track use.

from

$31.49

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

$32.99

This Mr. Gasket Water Pump Bolt Set includes chrome plated grade 5 hex head fasteners to install the water pump on your small or big block Chevrolet with the long style water pump. Includes four 3/8 inch-16 x 2 inch bolts with four 3/8 inch AN washers. AN washers have no exposed shoulder which offers a professional appearance.

Product Features:

Chrome Plated
Grade 5
AN washers with no exposed shoulder for a professional appearance

from

$112.99

Use with a short water pump to convert to a long water pump.

Product Features:

Water Pump Spacer Kit

from

$499.99

Manufactured from cellulose and nitrile composition gasket material. A black latex rubber coating is applied to outside of gasket to help seal minor oil pan rail irregularities and eliminate the possibility of oil leakage. Provides excellent sealing and durability. Complete with molded rubber front/rear oil pan seals where applicable. For OE replacement, high performance street, drag race and oval track.

Product Features:

Made of high temp silicone or nitrile blend rubber
Torque limiters to prevent over tightening
One piece molded rubber
Fits left and right hand dipsticks

from

$18.29

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.

from

$126.99

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: 105 lbs. @ 1.700″, Open Pressure: 273 lbs. @ 1.250″
O.D.: 1.254″, I.D.: .880″
Single valve springs with damper
Approximately .490″ max lift at recommended installed height

from

$151.99

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

from

$147.99

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

1971 Pontiac LeMans Performance Engines

More 1971 Pontiac LeMans Performance Engines

Essential 1971 Pontiac LeMans Performance Engines

Competition Cams – CAMSHAFT, SBC 291 MUTHA THUMPR HYDRAULIC ROLLER 1 EA (Part No.12-601-8)

B & M – Performance Torque Converter for GM TH400, 350, & 375 Transmissions (Part No.20400)

Edelbrock – Super Victor 4500 for Raised Port 23 Degree Intake Manifold Small-Block Chevy (Part No.2971)

Edelbrock – Performer Small-Block Chevy Cylinder Head 64cc Flat Tappet Polished (Part No.609019)

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

FEL-PRO Performance – PERFORMANCE REAR MAIN SEAL SET (Part No.2912)

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

Mr. Gasket – Cylinder Head Dowel Pins (Part No.4375)

FEL-PRO Performance – PERFORMANCE VALVE COVER GASKET SET (Part No.1602)

Edelbrock – Valve Cover Gasket Set for Chevrolet (Part No.7549)

Edelbrock – Performer-Plus Camshaft Kit for 1957-86 Small-Block Chevrolet (Part No.2103)

Competition Cams – High Energy 212/212 Hydraulic Flat Cam K-Kit (Part No.K51-230-3)

Edelbrock – Performer Series Retainer (Qty 16) (Part No.9721)

Edelbrock – Performer Series Retainer (Qty 16) (Part No.9730)

FEL-PRO Performance – Cylinder Head Gasket: Steel Core Composite, Without Head Bolts (Part No.1004)

Mr. Gasket – Ultra Seal: Head Gasket (Part No.5801G)

Spectre – Water Neck; Chevy Late Model (Part No.4730)

Spectre – Water Neck; Olds (Part No.4733)

Mr. Gasket – Intake Gasket (Part No.116)

FEL-PRO Performance – Lower Intake Manifold Gasket Set: 3 Piece Set (Part No.1200)

Mr. Gasket – Bolt Water Pump (Part No.4998)

Weiand – Team G; Water Pump Spacer Kit (Part No.8207)

Mr. Gasket – Engine Sealing (Part No.6560)

FEL-PRO Performance – PERFORMANCE OIL PAN GASKET SET (Part No.1800)

FEL-PRO Performance – PERFORMANCE OIL PAN GASKET SET (Part No.1818)

Competition Cams – Set of 16 Single Springs w/ 1.254" O.D., 1.254" I.D., 1.700" Installed Height (Part No.981-16)

Edelbrock – Complete Sure Seat Valve Spring Kit for Chevy 262-400 V8 1957-95 (Part No.5794)

Edelbrock – Complete Sure Seat Valve Spring Kit for Chevy 262-400 V8 1957-95 (Part No.5894)

Popular 1971 Pontiac LeMans Performance Engines Categories

1971 Pontiac LeMans Performance Engines

Performance Engines Brands To Make Your 1971 Pontiac LeMans Last

Popular B & M Performance Engines

Top 1971 Pontiac LeMans Performance Engines from Mr. Gasket

FAQs for 1971 Pontiac LeMans Performance Engines

What are the most purchased Performance Engines for the 1971 Pontiac LeMans?

What are the top-rated 1971 Pontiac LeMans Performance Engines?

More Popular Parts for All Makes