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COMP Cams SK42-231-4 Magnum Muscle Hydraulic Flat Camshaft Kit for Oldsmobile 260-455

(Pontiac Firebird 1977-79, Grand Prix 1977, Bonneville 1977-81, LeMans 1976-77, Catalina 1977-81, Ventura 1975-77, Parisienne 1986 + 31 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

SK42-231-4
5 reviews
Sale Price

$463.95

Estimated ship date Wednesday, November 25

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Product Details

The COMP Cams SK42-231-4 Magnum Muscle hydraulic flat tappet camshaft kit is designed specifically for Oldsmobile V8 engines ranging from 260 to 455 cubic inches. This complete SK-Kit (Small Kit) provides everything needed for a straightforward camshaft upgrade, delivering improved performance across the RPM range with a smooth idle quality suitable for street and marine applications.

Camshaft Specifications:

  • Duration: 230° intake / 230° exhaust (advertised)
  • Lift: Optimized for street and marine performance
  • Hydraulic flat tappet design for reliable, low-maintenance operation
  • Ideal RPM range: 1,500-5,500 RPM
  • Smooth idle with excellent throttle response

Complete Kit Includes:

  • Magnum Muscle hydraulic flat tappet camshaft
  • Hydraulic lifter set (16 lifters)
  • Timing chain set with gears
  • Assembly lube for proper break-in
  • Installation instructions
  • COMP Cams decals

This camshaft profile is well-suited for street performance builds, classic muscle car restorations, and marine applications where reliable power and torque are essential. The hydraulic flat tappet design eliminates the need for valve lash adjustments, making it an excellent choice for drivers who want performance without the maintenance requirements of solid lifter camshafts. Compatible with stock torque converters and rear axle ratios, this kit works with factory valve springs and other stock components on most applications.

Products specifications

Fits

Pontiac Firebird 1977-79, Grand Prix 1977, Bonneville 1977-81, LeMans 1976-77, Catalina 1977-81, Ventura 1975-77, Parisienne 1986, Bonneville (SE/SSE) 1977-81, Grand LeMans 1976-77, Grand Safari 1977-78, Safari 1987-89, Phoenix 1977 + 26 more models

Advertised Exhaust Duration

280

Cam Type

Hydraulic Flat Tappet

Exhaust Valve Lift

0.49

Kit Type

SK-Kit - Small Kit

Camshaft Material

Cast Iron

Camshaft Series

Marine

Engine Family

Oldsmobile 260-455 c.i. 8 Cylinder (1967-1990)

AMAZON ASIN

B001R9FMJC

Usage

Street/Performance

Assembly Lubricant Included

Yes

Camshaft Gear Attachment

1-Bolt

LOBE SEPARATION

110

Valve Springs Required

Yes

Lifter Type

Hydraulic Flat Tappet

Prop 65

WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov

C.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967?

Yes, but must meet tailpipe emission standards for year of vehicle.

C.A.R.B. Exempt for On-Road Vehicles?

No

C.A.R.B. Exempt for Racing and Off-Road Only Vehicles?

Yes, but must be a race/competition only vehicle.

C.A.R.B. Exempt for California Certified Vehicles Manufactured Before 1965?

Yes, but must meet tailpipe emission standards for year of vehicle.

C.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967?

Yes, but must meet tailpipe emission standards for year of vehicle.

Gaskets Included

No

Basic Operating RPM Range

2,000-6,000

Locks Included

No

Exhaust Duration at .050 inch Lift

230

Intake Duration at .050 Inch Lift

230

Lifters Included

Yes

Retainers Included

No

Timing Chain and Gears Included

Yes

Intake Valve Lift

0.49

Advertised Intake Duration

280

Valve Stem Seals Included

No

Pushrods Included

No

Great pricing and quick shipping. GREAT

Awsome service and prices,Thanks alot

Couldn't use paypal but other than that it was fine. Battery came with a broken top, packaging was not up to the std. of other Optima batteries I have ordered on line.

No hassle ordering and fast quality shipping at a reasonable price

This store had a lot of products more than most other sites I looked at. The order was processed quickley and shiped the next day. I will use them again.

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