1965 Pontiac LeMans Performance Engines

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Keep Your 1965 Pontiac LeMans in Top Shape with Quality Performance Engines

Whether you’re repairing or upgrading your Performance Engine, using high-quality parts is key to keeping your 1965 Pontiac LeMans looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Performance Engine Coolant Thermostats, Performance Intake Manifolds, and Performance Engine Oil Pan Gaskets. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Performance Engines from Trusted Brands

Looking for a reliable Performance Engine? We’ve got you covered with options from brands you know and trust like B & M and Competition Cams. For example, B & M Performance Engines start at just $562.99 with an average 4.1 star rating. Competition Cams offer similar pricing and quality, backed by strong customer feedback. With over 3 reviews and a solid 5 star average, you can shop with confidence knowing other Pontiac LeMans owners approve.

Explore Related Parts

While you’re upgrading or replacing your Performance Engine, don’t forget to check out other key components like Performance Fuel Systems and Performance Oil Filters. At Advance Auto Parts, we’re here to help you keep your 1965 Pontiac LeMans in peak condition, inside and out.

Essential 1965 Pontiac LeMans Performance Engines

Competition Cams – Rocker Arms, Ultra Gold Small Block Chevy 1.6 1 St (Part No.19002-16)

Rocker Arms, Ultra Gold Small Block Chevy 1.6 1 St

from

$433.99
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
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Mr. Gasket – Ultra Seal: Screw-In Rocker Arm Studs (Part No.1076)

Ultra Seal: Screw-In Rocker Arm Studs

from

$77.99
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
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B & M – Tork Master 3000 (Part No.20402)

Tork Master 3000

from

$562.99
Torque Converter – Tork Master 3000 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) APPLICATION: Tork Master 3000 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 performance torque converter. The Tork Master is an excellent all-around performance street converter. The best ‘value priced’ street converters available, Tork Master converters come with a new precision pump drive tube and all are pressure tested and fully balanced. The Tork Master torque converter is not recommended for big block or supercharged applications. New allow steel pump drive tube. Needle thrust bearing when factory equipped. New thrust washer between turbine and cover when required.

Product Features:
  • New Precision Pump Drive Tube
  • Pressure Tested
  • Fully Balanced
  • Needle Thrust Bearing
  • New Thrust Washer
  • Washer Between Turbine and Cover
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B & M – Performance Torque Converter for GM TH400, 350, & 375 Transmissions (Part No.20400)

Performance Torque Converter for GM TH400, 350, & 375 Transmissions

from

$337.99
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
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Competition Cams – Mutha’ Thumpr 235/249 Hydraulic Flat Cam (Part No.12-601-4)

Mutha' Thumpr 235/249 Hydraulic Flat Cam

from

$350.99
HYDRAULIC – Mutha’ Thumpr: High performance street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, rough idle.

Product Features:
  • HYDRAULIC – Mutha’ Thumpr: High performance street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, rough idle.
  • 287/305 Advertised Duration, 235/249 Duration @ .050″, .489″/.476″ Lift, 107 Lobe Separation
  • Valve spring upgrade required
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Competition Cams – Magnum 224/224 Hydraulic Flat Cam (Part No.12-212-2)

Magnum 224/224 Hydraulic Flat Cam

from

$226.99
HYDRAULIC – Magnum: Great for street machines. Needs 2200+ stall, headers and gears. Rough idle.

Product Features:
  • HYDRAULIC – Magnum: Great for street machines. Needs 2200+ stall, headers and gears. Rough idle.
  • 280/280 Advertised Duration, 230/230 Duration @ .050″, .480″/.480″ Lift, 110 Lobe Separation
  • Valve spring upgrade required
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Mr. Gasket – Valve Cover Gasket Set (Part No.585G)

Valve Cover Gasket Set

from

$34.99
Molded rubber gaskets are reusable, great for engines that require valve lash maintenance. These gaskets feature Nitrile material for long life, solid steel carrier for strength and rigidity. Incorporates compression limiters to prevent fastener over-tightening.

Product Features:
  • Features Nitrile Rubber Material For Long Life
  • Molded Rubber Gaskets Are Reusable
  • Ideal For Engine Requiring Valve Lash Maintenance
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FEL-PRO Performance – Engine Valve Cover Gasket Set (Part No.1640)

Engine Valve Cover Gasket Set

from

$22.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Blue Stripe performance cork-rubber gaskets use cork particles evenly distributed throughout a rubber binder resulting in a compressible gasket without leak paths.
  • Not intended for use in emission controlled vehicles.
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Competition Cams – 10 Degree Superlock Steel Retainer for 1.250" OD Valve Spring (Part No.750-1)

10 Degree Superlock Steel Retainer for 1.250" OD Valve Spring

from

$10.99
10 Degree Superlock Steel Retainer for 1.250" OD Valve Spring

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

Performer Series Retainer (Qty 16)

from

$106.99
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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FEL-PRO Performance – PERFORMANCE OIL PAN GASKET SET (Part No.1818)

PERFORMANCE OIL PAN GASKET SET

from

$27.99
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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FEL-PRO Performance – PERFORMANCE OIL PAN GASKET SET (Part No.1814)

PERFORMANCE OIL PAN GASKET SET

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.
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Edelbrock – Performer EPS Intake Manifold for 1955-86 Small-Block Chevy, Black Finish (Part No.27013)

Performer EPS Intake Manifold for 1955-86 Small-Block Chevy, Black Finish

from

$379.99
Edelbrock part #27013 Performer EPS intake manifold is designed for 1986 and earlier 262-400 cubic-inch Chevys. Edelbrock’s Patented Dual-plane, low-rise design with a 180-degree firing order greatly improves torque over a wide rpm range for excellent thr

Product Features:
  • Idle-5500 RPM Range
  • Dual Plane Type-4150 Style Flange
  • 3.74 in. Front Height, 4.27 in. Center Height, 4.8 in. Rear Height
  • Black Powder Coated Finish
  • Non-EGR
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Holley – Strip Dominator; Intake Manifold (Part No.300-25)

Strip Dominator; Intake Manifold

from

$379.99
Strip Dominator intake manifold square bore carburetor mounting flange. Single plane with isolated plenum. Isolated water cross-over.

Product Features:
  • Single Plane With Isolated Plenum
  • Square Bore Carburetor Mounting Flange
  • Isolated Water Cross-Over
  • Power Band 4500-7600 rpm
  • Height Front 5.11 in. Rear 5.97 in.
  • Port Size 2.05 in. Height 1.22 in. Width
  • No Exhaust Heat Crossover Provision
  • Ideal For Drag Cars w/Auto Trans.
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Edelbrock – Pushrod Set for S/B Chevy (Part No.9630)

Pushrod Set for S/B Chevy

from

$199.99


Product Features:
  • Case-Hardened Tubing
  • Welded Ends
  • 5/16 in. Diameter
  • Use with or without Hardened Steel Guideplates
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Competition Cams – PUSHROD SET, SBC 3/8 1 ST (Part No.7513-16)

PUSHROD SET, SBC 3/8 1 ST

from

$165.99
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
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Mr. Gasket – High Performance Thermostat (Part No.4365)

High Performance Thermostat

from

$32.49
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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Competition Cams – Valve Seals, O-Ring 11/32" 1 St (Part No.501-16)

Valve Seals, O-Ring 11/32" 1 St

from

$223.99
VALVE SEALS, O-RING 11/32″ 1 ST
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Competition Cams – Valve Seals, Umbrella 11/32" 1 St (Part No.502-16)

Valve Seals, Umbrella 11/32" 1 St

from

$230.99
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
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Edelbrock – Intake Manifold Gasket for 1958-1986 E-Tec 200 Small-Block Chevy (Part No.7215)

Intake Manifold Gasket for 1958-1986 E-Tec 200 Small-Block Chevy

from

$50.99
Edelbrock part #7215 Intake Gaskets for 1958-1986 E-Tec 200 Small-Block Chevy allow for optimum flow and performance. Any gasket can create a seal, but a good gasket can do it with less clamping force, and for a longer period of time. The new MP-2N Microp

Product Features:
  • 1.26″x2.24″
  • E-Tec Port Style
  • .120″ Thick
  • Two Piece Configuration
  • Composite Material
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FEL-PRO Performance – Lower Intake Manifold Gasket Set: 3 Piece Set (Part No.1202)

Lower Intake Manifold Gasket Set: 3 Piece Set

from

$35.99
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
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Competition Cams – High Energy Hydraulic Flat Lifter Chevrolet SBC, BBC, and 194-292/200-262 V6. (Part No.812-1)

High Energy Hydraulic Flat Lifter Chevrolet SBC, BBC, and 194-292/200-262 V6.

from

$13.99
High Energy Hydraulic Flat Lifter Chevrolet SBC, BBC, and 194-292/200-262 V6.

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

Complete Sure Seat Valve Spring Kit for Chevy 262-400 V8 1957-95

from

$159.99
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
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Competition Cams – Xtreme Energy 240/246 Hydraulic Flat Cam and Lifter Kit (Part No.CL42-225-4)

Xtreme Energy 240/246 Hydraulic Flat Cam and Lifter Kit

from

$416.99
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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Competition Cams – Thumpr 227/241 Hydraulic Flat Cam and Lifter Kit (Part No.CL51-600-5)

Thumpr 227/241 Hydraulic Flat Cam and Lifter Kit

from

$429.99
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.

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.
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Competition Cams – High Energy 206/206 Hydraulic Flat Cam K-Kit (Part No.K12-205-2)

High Energy 206/206 Hydraulic Flat Cam K-Kit

from

$1201.99
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.
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Competition Cams – Magnum 224/224 Hydraulic Flat Cam and Lifter Kit (Part No.CL51-233-4)

Magnum 224/224 Hydraulic Flat Cam and Lifter Kit

from

$403.99
An older member of the COMP Cams grind family, the Magnum series of camshafts offers excellent performance gains over stock without the added wear and tear associated with more aggressive camshafts.

Product Features:
  • Best with aftermarket torque converters and 9.5:1 compression.
  • Great high RPM power.
  • Easy on valve train parts.
  • Can be used with mild ratio rocker arms and traditional performance valve springs.
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Competition Cams – Xtreme Energy 224/230 Hydraulic Flat Cam and Lifter Kit (Part No.CL51-223-4)

Xtreme Energy 224/230 Hydraulic Flat Cam and Lifter Kit

from

$416.99
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.
See More

Most Popular Performance Engine Coolant Thermostat for 1965 Pontiac LeMans

Enhance your 1965 Pontiac LeMans with this popular Performance Engine Coolant Thermostat we have in stock, for $32.49.

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

High Performance Thermostat

from

$32.49
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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Best-Selling 1965 Pontiac LeMans Performance Intake Manifold

Upgrade your LeMans with our best-selling Performance Intake Manifold.

Edelbrock – Performer Intake Manifold for 1965-79 Pontiac 326-455 Non-EGR, Polished Finish (Part No.21561)

Performer Intake Manifold for 1965-79 Pontiac 326-455 Non-EGR, Polished Finish

from

$754.99
Product Features:
  • Idle-5500 RPM Range
  • Dual Plane Type-4150 Style Flange
  • 5.5 in. Front Height, 6.05 in. Center Height, 6.6 in. Rear Height
  • Polished Finish
  • Non-EGR
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Top-Quality Performance Engine Oil Pan Gaskets for 1965 Pontiac LeMans

Choose a high-quality OEM or aftermarket Performance Engine Oil Pan Gasket for Pontiac LeMans and enjoy top-notch performance from $30.49.

FEL-PRO Performance – PERFORMANCE OIL PAN GASKET SET (Part No.1814)

PERFORMANCE OIL PAN GASKET SET

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.
See More

Top Picks for 1965 Pontiac LeMans Performance Engine Valve Cover Gasket Sets

Invest in one of our 3 durable Performance Engine Valve Cover Gasket Sets for your 1965 Pontiac, knowing you’re getting trusted brands and expert craftsmanship.

Mr. Gasket – Gskt Valve Cover (Part No.576)

Gskt Valve Cover

from

$43.49
Mr. Gasket Performance Valve Cover Gaskets are high-density cork/rubber blend gaskets that use evenly sized cork particles distributed evenly throughout the rubber binder. The result is a compressible valve cover gasket without leak paths. These gaskets create a positive seal by controlled swelling of the gasket material when exposed to hot engine oil. Provides excellent flange sealing and durability. For original equipment replacement, high performance street, drag race and oval track use.

Product Features:
  • Manufactured from high-density cork/rubber blend gasket material
  • Provides excellent sealing and durability
  • For OE replacement, high performance street, drag race and oval track use
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FEL-PRO Performance – Engine Valve Cover Gasket Set (Part No.1622)

Engine Valve Cover Gasket Set

from

$34.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Blue Stripe performance cork-rubber gaskets use cork particles evenly distributed throughout a rubber binder resulting in a compressible gasket without leak paths.
  • Not intended for use in emission controlled vehicles.
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FEL-PRO Performance – Performance Valve Cover Gasket Set (Part No.1623)

Performance Valve Cover Gasket Set

from

$23.29
Fel-Pro® Performance Gaskets deliver reliable sealing under grueling racing conditions.

Product Features:
  • Blue Stripe® performance cork-rubber gaskets use cork particles evenly distributed throughout a rubber binder resulting in a compressible gasket without leak paths.
  • Not intended for use in emission controlled vehicles.
See More

Performance Engine Intake Manifold Gaskets for 1965 Pontiac LeMans

Make a smart move for your 1965 Pontiac LeMans with products all priced from $34.99 to $35.99.

FEL-PRO Performance – Lower Intake Manifold Gasket Set: 12 Piece Set (Part No.1233)

Lower Intake Manifold Gasket Set: 12 Piece Set

from

$34.99
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
See More

Mr. Gasket – Intake Gasket (Part No.502G)

Intake Gasket

from

$35.99
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. Complete with manifold end seals and distributor gasket (where applicable). 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 where applicable
  • For OE replacement, high performance street, drag race and oval track use
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Top-Rated Performance Engine Brands For Your 1965 Pontiac LeMans

When it comes to finding the perfect Performance Engine for your 1965 Pontiac LeMans, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 5 trusted brands. We carry the most popular Performance Engine brands including B & M and Competition Cams, and more, all known for their exceptional customer ratings (average brand rating of 4.1 stars) and competitive prices, as low as $223.99. Purchasing a Performance Engine from us here at Advance Auto Parts is a smart move for both you and your 1965 Pontiac LeMans, providing peace of mind with parts that meet or exceed OEM standards.

Popular B & M 1965 Pontiac LeMans Performance Engines

If you’re looking for a top-quality Performance Engine for your 1965 Pontiac LeMans, Advance Auto Parts has exactly what you need with our selection of B & M Performance Engines. We have 1 B & M Performance Engines in stock for this fitment, all known for their durability and precision fit. With prices starting at just $562.99, you’ll find the perfect Performance Engine for your needs and budget. B & M Performance Engines for the 1965 Pontiac LeMans come highly rated, with over 1 customer reviews and an impressive average rating of 4.1 stars. Choosing a B & M Performance Engine from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Tork Master 3000
from $562.99
(1)
Tork Master 3000
“good parts and very strong”

Top-Quality Competition Cams 1965 Pontiac LeMans Performance Engines

For those in search of a high-quality Performance Engine for their 1965 Pontiac LeMans, Advance Auto Parts offers a great selection of Competition Cams Performance Engines. With 1 Competition Cams Performance Engines in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Performance Engines start at just $223.99, giving you a range of options to suit your budget. Backed by over 1 customer ratings and an average rating of 4.1 stars, Competition Cams Performance Engines provide both reliability and excellent performance. Choosing a Competition Cams Performance Engine from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
Valve Seals, O-Ring 11/32" 1 St
from $223.99
(1)
Valve Seals, O-Ring 11/32" 1 St
“Replaced as original, super easy to install!”

FAQs for 1965 Pontiac LeMans Performance Engines

What are the best-selling Performance Engines for 1965 Pontiac LeMans?

Out of 49 Performance Engines that fit 1965 Pontiac LeMans, the following parts are the top sellers:

What’s the price range for 1965 Pontiac LeMans Performance Engines?

The prices of Performance Engines for the 1965 Pontiac LeMans range from $10.99 up to $1,137.00 for the most premium parts.

What is the average price of a Performance Engine for a 1965 Pontiac LeMans?

The average price for Performance Engines for the 1965 Pontiac LeMans is $310.63. Keep in mind the variety of part types within our Performance Engine category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Performance Engines for other Pontiac LeMans model years?

Yes, we carry Performance Engines for 17 model years of Pontiac LeMans between 1963 and 1981. The following model years are the most popular for Performance Engine purchases: 1981, 1980, 1979, 1978, 1977, 1976, 1975, 1974, and 1973.

What are the cheapest Performance Engines for my 1965 Pontiac LeMans?

Does Advance Auto Parts sell Performance Engines for any other 1965 Pontiac models?

Yes. We stock Performance Engines for 6 other popular 1965 Pontiac models. Some of the most popular are 1965 Grand Prix Performance Engines, 1965 Bonneville Performance Engines, 1965 GTO Performance Engines, 1965 Catalina Performance Engines, and 1965 Safari Performance Engines.

What are the top-rated Performance Engines that fit the 1965 Pontiac LeMans?

The one 1965 Pontiac LeMans Performance Engine we have in stock is the 10 Degree Steel Retainer for 26120 Beehive Spring. It costs $10.99.

What types of Performance Engines do you sell for my 1965 Pontiac LeMans?

As of 3/1/26, these are some of the most in-demand types of Performance Engines for a 1965 Pontiac LeMans:

Can I get help with 1965 Pontiac LeMans Performance Engine orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Pontiac Performance Engines and more.

What is your return policy for Pontiac LeMans Performance Engines?

Advance Auto Parts keeps returns simple. For new Pontiac LeMans Performance Engines and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.