1968 Oldsmobile Cutlass Supreme Performance Engines

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Keep Your 1968 Oldsmobile Cutlass Supreme 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 1968 Oldsmobile Cutlass Supreme looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Performance Intake Manifolds, Performance Water Outlets, and Performance Engine Rocker Arms. 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 Edelbrock. For example, Edelbrock Performance Engines start at just $487.99 with an average 4.4 star rating. With over 4 reviews and a solid 4 star average, you can shop with confidence knowing other Oldsmobile Cutlass Supreme owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1968 Oldsmobile Cutlass Supreme Performance Engine at Advance Auto Parts is around $219.05, with a range that starts at $7.99 and goes up to $975.99. With 47 options in stock from 3 trusted brands, finding the right fit is easy. Popular picks like Water Neck; Olds, Valve Seals, Umbrella 11/32" 1 St, and VALVE SEALS, 11/32" TEFLON 1 ST start at just $26.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Performance Engine, don’t forget to check out other key components like Performance Air Filters and Performance Fuel Systems. At Advance Auto Parts, we’re here to help you keep your 1968 Oldsmobile Cutlass Supreme in peak condition, inside and out.

Find Your Specific 1968 Oldsmobile Cutlass Supreme Performance Engines

Looking for the perfect Performance Engine for your 1968 Oldsmobile Cutlass Supreme? You’re in the right place. Below, you’ll find links to various types of Performance Engines that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Performance Engines, ensuring durability and a precise fit for your Oldsmobile Cutlass Supreme. Whether you’re driving a 1968 model or another popular model year like 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, and 1989, we’ve got you covered. Purchasing Performance Engines from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Performance Engines that fit your vehicle.

Essential 1968 Oldsmobile Cutlass Supreme Performance Engines

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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(1 reviews)
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Edelbrock – Sure Seat Valve Springs for S/B Chevy O.E Cast iron Cylinder Heads (Part No.5703)

Sure Seat Valve Springs for S/B Chevy O.E Cast iron Cylinder Heads

from

$69.99
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
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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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Competition Cams – Magnum 8.280" Long, .080" Wall, 3/8" Diameter Pushrod Set of 8 (Part No.7131-8)

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

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$80.99
Magnum 8.280" Long, .080" Wall, 3/8" Diameter Pushrod Set of 8
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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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(1 reviews)
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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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Competition Cams – Magnum 1.52 Rocker and HE Pushrod Kit for Chevrolet 262-400 Small Block (Part No.RP1412-16)

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

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$356.99
Magnum 1.52 Rocker and HE Pushrod Kit for Chevrolet 262-400 Small Block
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Competition Cams – Magnum Roller Rocker Arms for Ford; 3/8" Stud, 1.6 Ratio (Part No.1431-16)

Magnum Roller Rocker Arms for Ford; 3/8" Stud, 1.6 Ratio

from

$350.99
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
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(1 reviews)
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Edelbrock – Victor Jr. 23 Degree Tall Intake Manifold Small-Block Chevy (Part No.2999)

Victor Jr. 23 Degree Tall Intake Manifold Small-Block Chevy

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$487.99
Edelbrock part #2999 Victor Jr. 23 degree Tall intake manifold provides maximum performance for engines with standard port location, iron and aluminum cylinder heads. This versatile manifold is excellent for many applications from high-performance’s stree

Product Features:
  • Race Winning Design for all Types of Competition
  • Single Plane Maximizes Torque and Horsepower
  • For Performance in 3500 to 7500 RPM Range
  • Exit Ports Closely Match Unported GM Bowtie Heads
  • Ports Match GM PN[14011058/14011034/10134392]
  • Best for Classes Restricting Porting of Intakes
  • Features 1 in. Taller Carb Pad than PN[2972]
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Mr. Gasket – Intake Manifold Bolts (Part No.957G)

Intake Manifold Bolts

from

$30.49
These grade 5 hex head bolts are brite zinc plated for protection and appearance. Hardened flat washers provide uniform torque & prevent galling on aluminum manifolds. Includes sixteen (16) 3/8 inch-16 x 1-1/4 inch bolts & washers

Product Features:
  • Zinc plated Grade 5 steel
  • Flat washers provide uniform clamp load and prevent galling on aluminum intake manifolds
  • Ideal For Minimal Space
  • 12-Point Head And Flange
  • Zinc Plated For Protection
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Competition Cams – XE Computer Control 206/212 Hydraulic Flat Cam/Lifter Kit (Part No.CL12-249-4)

XE Computer Control 206/212 Hydraulic Flat Cam/Lifter Kit

from

$390.99
SMALL BLOCK CHEVY HYDRAULIC CAM AND LIFTER KIT – Xtreme Energy Computer Controlled: Great in throttle body, crossfire or carbureted engine and 305 TPI.

Product Features:
  • Cam and lifter kit for Small Block Chevy engines
  • CL-Kit includes cam, lifters, assembly lube, instructions and decals
  • HYDRAULIC – Xtreme Energy Computer Controlled: Great in throttle body, crossfire or carbureted engine and 305 TPI.
  • 249/260 Advertised Duration, 206/212 Duration @ .050″, .434″/.444″ Lift, 112 Lobe Separation
  • Valve spring upgrade required
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Competition Cams – Xtreme Energy 218/224 Hydraulic Flat Cam and Lifter Kit (Part No.CL42-222-4)

Xtreme Energy 218/224 Hydraulic Flat Cam and Lifter Kit

from

$975.99
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 – Mutha’ Thumpr 235/249 Hydraulic Flat Cam and Lifter Kit (Part No.CL12-601-4)

Mutha' Thumpr 235/249 Hydraulic Flat Cam and Lifter Kit

from

$963.99
SMALL BLOCK CHEVY HYDRAULIC CAM AND LIFTER KIT – Mutha’ Thumpr: High performance street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, rough idle.

Product Features:
  • Cam and lifter kit for Small Block Chevy engines
  • CL-Kit includes cam, lifters, assembly lube, instructions and decals
  • 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 – Big Mutha’ Thumpr 243/257 Hydraulic Flat Cam (Part No.51-602-5)

Big Mutha' Thumpr 243/257 Hydraulic Flat Cam

from

$341.99
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 – Thumpr 226/241 Hydraulic Flat Cam (Part No.42-600-5)

Thumpr 226/241 Hydraulic Flat Cam

from

$341.99
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 – Xtreme Energy 218/224 Hydraulic Flat Cam (Part No.42-222-4)

Xtreme Energy 218/224 Hydraulic Flat Cam

from

$350.99
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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Mr. Gasket – O-Ring Style Chrome Water Neck (Part No.2557)

O-Ring Style Chrome Water Neck

from

$32.49
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:
  • Complete with o-rings and mounting bolts
  • Features an o-ring style seal to prevent water leaks
  • Chrome plated
  • 1/2″ NPT port can be used for various coolant temp related sensors or switches
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Spectre – Water Neck; Olds (Part No.4733)

Water Neck; Olds

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
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Mr. Gasket – Advance And Retard Cam Bushings (Part No.85)

Advance And Retard Cam Bushings

from

$49.99
With Mr. Gasket cam degree bushings you fine tune the camshaft timing of your engine to as little as 1 degree. Even aftermarket timing sets with multiple keyways can’t give the range of adjustment these bushings allow. Retard your camshaft to lower the powerband for more low end torque and midrange horsepower, or advance for more top end power. This kit does even number adjustment 0-8 degrees.

Product Features:
  • Advance the cam for increased torque and horsepower
  • Tune your powerband for more end torque or increase top end horsepower
  • Includes (4) offset bushings and (1) 0 degree bushing
  • Cam sprocket dowel pin hole must be drilled to .406¿ (13/32¿) dia.
  • Cam sprocket dowel pin hole must be drilled to .406┐ (13/32┐) dia.
  • Increase Top-End Horsepower
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Competition Cams – TIMING SET, HIGH TECH SMALL BLOCK CHEVY 1 EA (Part No.3100)

TIMING SET, HIGH TECH SMALL BLOCK CHEVY 1 EA

from

$83.99
COMP Cams Hi-Tech Roller Race Timing Sets include cast iron camshafts gears, induction hardened billet steel crank sprockets, and pre-stretched, heat-treated double roller chains with heavy-duty large pin design. They feature 3 keyway crank sprockets for

Product Features:
  • Cast iron camshaft gear and induction hardened billet steel crank sprocket
  • Pre-stretched, heat-treated true double roller chain with heavy-duty large pin design; chain available separately
  • Ideal for all street performance and race applications
  • Features 3 keyway crank sprocket for 4-degree incremental adjustability, 4-degree maximum advance/retard
  • Dynamically balanced and quality checked for run-out tolerances
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(3 reviews)
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Competition Cams – Magnum Double Row Timing Set for ’65-’88 Ford 255, 289, 302 and Boss 302 (Part No.2120)

Magnum Double Row Timing Set for '65-'88 Ford 255, 289, 302 and Boss 302

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$123.99
Magnum Double Row Timing Set for ’65-’88 Ford 255, 289, 302 and Boss 302
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Competition Cams – Magnum Double Row Timing Set for ’65-’83 Oldsmobile 260-455 (Part No.2113)

Magnum Double Row Timing Set for '65-'83 Oldsmobile 260-455

from

$85.99
Magnum Double Row Timing Set for ’65-’83 Oldsmobile 260-455
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Competition Cams – High Energy Timing Set for ’55-’81 Pontiac 265-455 (Part No.3212)

High Energy Timing Set for '55-'81 Pontiac 265-455

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$63.99
High Energy Timing Set for ’55-’81 Pontiac 265-455
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Competition Cams – 10 Degree Steel Retainer for 26120 Beehive Spring (Part No.795-1)

10 Degree Steel Retainer for 26120 Beehive Spring

from

$10.99
10 Degree Steel Retainer for 26120 Beehive Spring
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Competition Cams – Tool Steel 10 Degree Retainer Set Of 16 For All Valves With 1.250" O.D. Springs (Part No.1750-16)

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

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$272.99
Tool Steel 10 Degree Retainer Set Of 16 For All Valves With 1.250" O.D. Springs
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Popular 1968 Oldsmobile Cutlass Supreme Performance Engines Categories

Performance Intake Manifolds
Performance Intake Manifolds
Performance Water Outlets
Performance Water Outlets
Performance Engine Camshaft and Lifter Kits
Performance Engine Camshaft and Lifter Kits
Performance Engine Timing Sets and Components
Performance Engine Timing Sets and Components
Performance Engine Valve Springs
Performance Engine Valve Springs
Performance Engine Rocker Arms
Performance Engine Rocker Arms
Performance Engine Camshafts
Performance Engine Camshafts
Performance Engine Valve Lifters
Performance Engine Valve Lifters
Performance Engine Push Rod Guideplates
Performance Engine Push Rod Guideplates
Performance Engine Push Rods
Performance Engine Push Rods
Performance Engine Valve Spring Retainer
Performance Engine Valve Spring Retainer
Performance Engine Valve Stem Seal Sets
Performance Engine Valve Stem Seal Sets

Most Popular Performance Intake Manifold for 1968 Oldsmobile Cutlass Supremes

Enhance your 1968 Oldsmobile Cutlass Supreme with this popular Performance Intake Manifold we have in stock, for $487.99.
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Edelbrock – Performer Small-Block Oldsmobile 350 EGR Intake Manifold (Part No.3711)

Performer Small-Block Oldsmobile 350 EGR Intake Manifold

from

$487.99


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
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(2 reviews)
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Best-Selling 1968 Oldsmobile Cutlass Supreme Performance Water Outlet

Upgrade your Cutlass Supreme with our best-selling Performance Water Outlet.
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Spectre – Water Neck; Olds (Part No.4733)

Water Neck; Olds

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
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Top-Quality Performance Engine Rocker Arms for 1968 Oldsmobile Cutlass Supremes

Choose a high-quality OEM or aftermarket Performance Engine Rocker Arm for Oldsmobile Cutlass Supremes and enjoy top-notch performance from $27.99.
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Competition Cams – Magnum 1.6 Ratio Rocker and HE Pushrod Kit for Oldsmobile 350-403 (Part No.1441-KIT)

Magnum 1.6 Ratio Rocker and HE Pushrod Kit for Oldsmobile 350-403

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$399.99
Magnum 1.6 Ratio Rocker and HE Pushrod Kit for Oldsmobile 350-403
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Competition Cams – High Energy Rocker Set with 1.6 Ratio for Oldsmobile 260-455 with Pedestal Mount (Part No.1242-16)

High Energy Rocker Set with 1.6 Ratio for Oldsmobile 260-455 with Pedestal Mount

from

$266.99
Perfect for stock or High Energy camshaft equipped engines, our High Energy rockers eliminate slop and feature a long slot for higher lift cams. These 1242 rockers feature a 1.6 ratio for pedestal mount ’67-’79 Oldsmobile 260-455.

Product Features:
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Competition Cams – Magnum Roller Rocker Arm Set with 1.6 Ratio for AMC, Ford and Oldsmobile 3/8" Stud (Part No.1442-16)

Magnum Roller Rocker Arm Set with 1.6 Ratio for AMC, Ford and Oldsmobile 3/8" Stud

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$241.99
Magnum Roller Rocker Arm Set with 1.6 Ratio for AMC, Ford and Oldsmobile 3/8" Stud
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Competition Cams – High Energy Aluminum 1.6 Ratio Roller Rocker Set of 8 AMC, SBF, Olds 7/16" Stud (Part No.17044-8)

High Energy Aluminum 1.6 Ratio Roller Rocker Set of 8 AMC, SBF, Olds 7/16" Stud

from

$148.99
Four decades after its founding, COMP Cams keeps its focus on producing the highest-performing products possible, providing superior customer service and leading the industry in technological development. That commitment continues to resonate with racers, engine builders and enthusiasts worldwide, making COMP Cams the preferred choice for valve train components. COMP Cams is unrivaled thanks to its engineering staff – the largest and most highly trained in the performance aftermarket industry – sophisticated manufacturing processes, expert technicians and real-world testing on the track and street. The company’s integration of research, engineering and development, coupled with the free technical assistance it offers customers, makes it the Absolute Leader in Valve Train Technology.

Product Features:
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Competition Cams – Magnum Roller Rocker Arm with 1.6 Ratio for AMC, Ford and Oldsmobile with 3/8" Stud (Part No.1442-1)

Magnum Roller Rocker Arm with 1.6 Ratio for AMC, Ford and Oldsmobile with 3/8" Stud

from

$31.99
Magnum Roller Rocker Arm with 1.6 Ratio for AMC, Ford and Oldsmobile with 3/8" Stud
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Competition Cams – High Energy Aluminum 1.6 Ratio Roller Rocker for AMC, SBF, Olds with 7/16" Stud (Part No.17044-1)

High Energy Aluminum 1.6 Ratio Roller Rocker for AMC, SBF, Olds with 7/16" Stud

from

$27.99
With a needle bearing fulcrum and a roller tip, our die cast aluminum rockers decrease friction and improve horsepower. This self-aligning 1.6 rocker fits AMC 290-401, Ford 289-351W and Olds 260-455 w/ a 7/16″ stud.

Product Features:
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Top Picks for 1968 Oldsmobile Cutlass Supreme Performance Engine Timing Sets and Components

Invest in one of our 2 durable Performance Engine Timing Sets and Components for your 1968 Oldsmobile, knowing you’re getting trusted brands and expert craftsmanship.
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Competition Cams – Magnum Double Row Timing Set for ’65-’83 Oldsmobile 260-455 (Part No.2113)

Magnum Double Row Timing Set for '65-'83 Oldsmobile 260-455

from

$85.99
Magnum Double Row Timing Set for ’65-’83 Oldsmobile 260-455
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Competition Cams – High Energy Timing Set for ’65-’83 Oldsmobile 260-455 (Part No.3213)

High Energy Timing Set for '65-'83 Oldsmobile 260-455

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$51.99
High Energy Timing Set for ’65-’83 Oldsmobile 260-455
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Performance Engine Valve Stem Seal Sets for 1968 Oldsmobile Cutlass Supremes

Make a smart move for your 1968 Oldsmobile Cutlass Supreme with products all priced from $223.99 to $230.99.
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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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Competition Cams – VALVE SEALS, 11/32" TEFLON 1 ST (Part No.503-16)

VALVE SEALS, 11/32" TEFLON 1 ST

from

$223.99
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 .530″ 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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Top-Rated Performance Engine Brands For Your 1968 Oldsmobile Cutlass Supreme

When it comes to finding the perfect Performance Engine for your 1968 Oldsmobile Cutlass Supreme, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 3 trusted brands. We carry the most popular Performance Engine brands including Edelbrock, and more, all known for their exceptional customer ratings (average brand rating of 4.4 stars) and competitive prices, as low as $487.99. Purchasing a Performance Engine from us here at Advance Auto Parts is a smart move for both you and your 1968 Oldsmobile Cutlass Supreme, providing peace of mind with parts that meet or exceed OEM standards.

Popular Edelbrock 1968 Oldsmobile Cutlass Supreme Performance Engines

If you’re looking for a top-quality Performance Engine for your 1968 Oldsmobile Cutlass Supreme, Advance Auto Parts has exactly what you need with our selection of Edelbrock Performance Engines. We have 1 Edelbrock Performance Engines in stock for this fitment, all known for their durability and precision fit. With prices starting at just $487.99, you’ll find the perfect Performance Engine for your needs and budget. Edelbrock Performance Engines for the 1968 Oldsmobile Cutlass Supreme come highly rated, with over 2 customer reviews and an impressive average rating of 4.4 stars. Choosing a Edelbrock Performance Engine from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Performer Small-Block Oldsmobile 350 EGR Intake Manifold
from $487.99
(2)
Performer Small-Block Oldsmobile 350 EGR Intake Manifold
“Great street manifold, strong torque, can be driven daily if needed, looks cool when the hood is raised. Glad there are aftermarket suppliers heeding ”

FAQs for 1968 Oldsmobile Cutlass Supreme Performance Engines

What are the best-selling Performance Engines for 1968 Oldsmobile Cutlass Supremes?

Out of 47 Performance Engines that fit 1968 Oldsmobile Cutlass Supremes, the following parts are the top sellers:

What’s the price range for 1968 Oldsmobile Cutlass Supreme Performance Engines?

The prices of Performance Engines for the 1968 Oldsmobile Cutlass Supreme range from $7.99 up to $975.99 for the most premium parts.

What is the average price of a Performance Engine for a 1968 Oldsmobile Cutlass Supreme?

The average price for Performance Engines for the 1968 Oldsmobile Cutlass Supreme is $219.05. 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 Oldsmobile Cutlass Supreme model years?

Yes, we carry Performance Engines for 28 model years of Oldsmobile Cutlass Supremes between 1967 and 1996. The following model years are the most popular for Performance Engine purchases: 1989, 1988, 1987, 1986, 1985, 1984, 1983, 1982, and 1981.

What are the cheapest Performance Engines for my 1968 Oldsmobile Cutlass Supreme?

Does Advance Auto Parts sell Performance Engines for any other 1968 Oldsmobile models?

Yes. We stock Performance Engines for 7 other popular 1968 Oldsmobile models. Some of the most popular are 1968 Cutlass Performance Engines, 1968 98 Performance Engines, 1968 Delta 88 Performance Engines, 1968 Toronado Performance Engines, and 1968 F85 Performance Engines.

What types of Performance Engines do you sell for my 1968 Oldsmobile Cutlass Supreme?

As of 6/2/26, these are some of the most in-demand types of Performance Engines for a 1968 Oldsmobile Cutlass Supreme:

Can I get help with 1968 Oldsmobile Cutlass Supreme Performance Engine orders?

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

What is your return policy for Oldsmobile Cutlass Supreme Performance Engines?

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

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