Essential 1970 Oldsmobile Cutlass Supreme Performance Engines

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$1421.99

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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$742.99

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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$644.99

Edelbrock part #7551 Performer RPM Air-Gap Oldsmobile 455 intake manifold is intended for aggressive street/ strip big-block Oldsmobile applications. Designed to optimize horsepower production from 1500 to 6500 rpm, this manifold will perform best with en

Product Features:

1500-6500 RPM Range
Dual Plane Type-4150 Style Flange
5.04 in. Front Height, 5.54 in. Center Height, 6.04 in. Rear Height
Satin Finish
Non-EGR

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$201.99

Product Features:

For use on Small Block Chevys with 4150 series carb (side mounting) and the Victor Ram base manifold #7075 only
Made of aluminum with a natural finish
Hardened washers must be used with intake bolts
Single Plane
Made In The USA

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$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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$217.99

These Magnum Roller Rocker Arms for Chevy V8 265-400 and V6 200-262 applications are the ultimate street rocker. With a 3/8″ stud diameter and 1.52 ratio, they are designed for serious performance enthusiasts. All Magnum Roller Rocker Arms are constructed

Product Features:

Roller tip reduces friction while stiff design and superior ratio accuracy yield more effective valve lift
For applications with less than 350 lbs. of open spring pressure
Constructed from 8620 chromemoly steel, a superior material that will not flex and ensures maximum lift
Ultimate street roller rocker arm designed for serious performance enthusiasts

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$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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$155.99

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 deg. Heat-Treated Valve Stem Locks
Retainers and Locks Black Oxide Coated
Dyno Tested And Street Proven
Great Match to Edelbrock Camshaft Kit

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$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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$100.99

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

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$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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$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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$199.99

Product Features:

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

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$48.99

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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$61.99

Product Features:

4.25 in. Cylinder Bore Diameter
0.042 in. Thickness
9.8cc Volume
Gray Color
Two Piece Configuration

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$87.99

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 4.230 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

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$74.99

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.

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$85.99

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

Product Features:

PROPRIETARY COATING – Nonstick anti-friction coating seals small surface imperfections
NO RETORQUE DESIGN – Steel core helps eliminate the need for retorquing head bolts
SUPERIOR SEAL – Precise embossed Printo seal sealing beads at all vital areas to eliminate leak paths
STRONG AND DURABLE – Features graphite or reinforced fiber facing material and steel armor for strength and durability
DESIGNED FOR IMPERFECT SEALING SURFACES – Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces

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$223.99

VALVE SEALS, O-RING 11/32″ 1 ST

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$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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$297.99

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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$297.99

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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$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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$341.99

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

$328.99

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.

from

$297.99

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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$549.99

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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$366.99

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.

FAQs for 1970 Oldsmobile Cutlass Supreme Performance Engines

What are the best-selling Performance Engines for 1970 Oldsmobile Cutlass Supremes?

Out of 64 Performance Engines that fit 1970 Oldsmobile Cutlass Supremes, the following parts are the top sellers:

Water Neck; Olds (22905408) – $26.99
Set of 16 Umbrella Valve Seals for Stock Guide Size, 11/32" Valve Stem (10214929) – $230.99
Ultra Seal: Head Gasket (10649155) – $87.99

What’s the price range for 1970 Oldsmobile Cutlass Supreme Performance Engines?

The prices of Performance Engines for the 1970 Oldsmobile Cutlass Supreme range from $7.99 up to $1,421.99 for the most premium parts.

What is the average price of a Performance Engine for a 1970 Oldsmobile Cutlass Supreme?

The average price for Performance Engines for the 1970 Oldsmobile Cutlass Supreme is $262.50. 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 1970 Oldsmobile Cutlass Supreme?

The cheapest 1970 Oldsmobile Cutlass Supreme Performance Engines we carry are:

Flat 1 Piece Guide Plate for Olds 350-455 with 5/16" Pushrod and 5/16" Stud (50288914) – $7.99
High Energy 8.500" Long, 5/16" Diameter Pushrod (50289696) – $7.99
High Energy 8.234" Long, 5/16" Diameter Pushrod (50289288) – $7.99
7 Degree Steel Retainer for 11/32" Valve with 1.437"-1.500" Spring (50289120) – $10.99
10 Degree Superlock Steel Retainer for 1.437"-1.500" OD Valve Spring (50289470) – $10.99

Does Advance Auto Parts sell Performance Engines for any other 1970 Oldsmobile models?

Yes. We stock Performance Engines for 6 other popular 1970 Oldsmobile models. Some of the most popular are 1970 Cutlass Performance Engines, 1970 98 Performance Engines, 1970 Delta 88 Performance Engines, 1970 Toronado Performance Engines, and 1970 F85 Performance Engines.

What types of Performance Engines do you sell for my 1970 Oldsmobile Cutlass Supreme?

As of 11/2/25, these are some of the most in-demand types of Performance Engines for a 1970 Oldsmobile Cutlass Supreme:

Can I get help with 1970 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.

1970 Oldsmobile Cutlass Supreme Performance Engines

Competition Cams – Xtreme Energy 218/224 Hydraulic Flat Cam K-Kit (Part No.K42-222-4)

Competition Cams – Thumpr 226/241 Hydraulic Flat Cam K-Kit (Part No.K42-600-5)

Edelbrock – RPM Air-Gap Oldsmobile 455 Intake Manifold (Part No.7551)

Edelbrock – Victor Ram 23-Degree Intake Manifold Top for Small-Block Chevy (Part No.7073)

Competition Cams – Ultra-Gold ARC Rocker Set w/ 1.6 Ratio for Chevrolet Small Block w/ 3/8" Stud (Part No.19002-16)

Competition Cams – MAGNUM ROLLER ROCKERS, SMALL BLOCK CHEVY 1.52 1 ST (Part No.1412-16)

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)

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

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

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

Competition Cams – Magnum 7.800" Long, .080" Wall, 3/8" Diameter Pushrod Set (Part No.7513-16)

Edelbrock – Pushrod Set for S/B Chevy (Part No.9630)

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

Edelbrock – Cylinder Head Gasket Set for Oldsmobile (Part No.7340)

Mr. Gasket – Ultra Seal: Head Gasket (Part No.5788G)

FEL-PRO Performance – Performance Cylinder Head Gasket (Part No.1025)

FEL-PRO Performance – Performance Cylinder Head Gasket (Part No.1155)

Competition Cams – Set of 16 O-Ring Valve Seals for Stock Guide Size, 11/32" Valve Stem (Part No.501-16)

Competition Cams – Set of 16 Umbrella Valve Seals for Stock Guide Size, 11/32" Valve Stem (Part No.502-16)

Competition Cams – Xtreme Energy 230/236 Hydraulic Flat Cam (Part No.42-224-4)

Competition Cams – Magnum 253/253 Hydraulic Flat Cam (Part No.42-237-4)

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

Competition Cams – Big Mutha’ Thumpr 243/257 Hydraulic Flat Cam (Part No.51-602-5)

Competition Cams – Xtreme Energy 224/230 Hydraulic Flat Cam (Part No.42-223-4)

Competition Cams – High Energy 206/206 Hydraulic Flat Cam (Part No.42-227-4)

Competition Cams – Big Mutha’ Thumpr 243/257 Hydraulic Roller Cam (Part No.12-602-8)

Competition Cams – Xtreme Energy 206/212 Hydraulic Flat (Part No.42-220-4)

Competition Cams – ENG ROCKER ARM KIT (Part No.1441-KIT)

Competition Cams – ENGINE ROCKER ARM (Part No.17044-16)

Competition Cams – HE RKR OLDS 1.6 PED (Part No.1242-16)

Competition Cams – ENGINE ROCKER ARM (Part No.1442-16)

Competition Cams – HIGH ENRGY ALUM ROCK (Part No.17044-8)

Competition Cams – ENGINE ROCKER ARM (Part No.1442-1)

Competition Cams – ENGINE ROCKER ARM (Part No.17044-1)

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

Competition Cams – ENGINE TIMING SET (Part No.2113)

Competition Cams – ENGINE TIMING SET (Part No.3213)

Mr. Gasket – Ultra Seal: Head Gasket (Part No.5788G)

Edelbrock – Performer Small-Block Oldsmobile 350 EGR Intake Manifold (Part No.3711)

Edelbrock – Performer Small Block Oldsmobile 350 Intake Manifold (Part No.7111)

Edelbrock – Performer Olds 350 Intake Manifold for 307-330-350-403 Small-Block Oldsmobile (Part No.2711)