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COMP Cams SK42-225-4 Xtreme Energy 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

SK42-225-4
6 reviews
Sale Price

$463.95

Estimated ship date Tuesday, November 24

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Product Details

The COMP Cams SK42-225-4 Xtreme Energy camshaft kit delivers enhanced performance for Oldsmobile 260-455 cubic inch V8 engines. This hydraulic flat tappet camshaft features aggressive 240/246 duration specifications designed to increase horsepower and torque across the powerband, making it ideal for street performance and hot rod applications.

Camshaft Specifications:

  • Advertised Duration: 280°/286° intake/exhaust
  • Duration at .050": 240°/246° intake/exhaust
  • Valve Lift: .510"/.520" intake/exhaust (with 1.6:1 rocker ratio)
  • Lobe Separation Angle: 110°
  • Recommended RPM Range: 2,500-6,500 RPM
  • Hydraulic flat tappet design for reliable street performance

Complete SK-Kit Includes:

  • Xtreme Energy hydraulic flat tappet camshaft
  • High-performance hydraulic lifters (16)
  • Double-roller timing chain set for accurate valve timing
  • Assembly lube for proper break-in
  • Installation instructions
  • COMP Cams decals

This comprehensive kit provides everything needed for a successful camshaft installation except valve springs. The Xtreme Energy grind offers excellent throttle response and a noticeable performance improvement over stock camshafts, with a moderate idle and good vacuum characteristics suitable for street-driven vehicles. Compatible with stock torque converters and rear gear ratios, though 3.23:1 or steeper gears are recommended for optimal performance.

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 Intake Duration

284

Basic Operating RPM Range

2,300-6,500

Cam Type

Hydraulic Flat Tappet

Kit Type

SK-Kit - Small Kit

Intake Valve Lift

0.541

Exhaust Valve Lift

0.544

Camshaft Material

Cast Iron

Engine Family

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

AMAZON ASIN

B001R99RUC

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

Locks Included

No

Exhaust Duration at .050 inch Lift

246

Intake Duration at .050 Inch Lift

240

Lifters Included

Yes

Retainers Included

No

Timing Chain and Gears Included

Yes

Advertised Exhaust Duration

296

Valve Stem Seals Included

No

Pushrods Included

No

Camshaft Series

Xtreme Energy

Great job

excellent service, i had to wait a few days for the order to be processesed, but only because i ordered on Friday afternoon, but love the site!

Autoplicity was quick and easy to order from. I found just what I was looking for in absolutely no time at all, plus it was shipped extremely quickly. I would definitely order from this site/company again.<br><br>Thanks!

excellent ship time and exceptional pricing deffinatly will buy from here again

great

They made a mistake with the shipping address, but, they took care of it very politely and professionally. Very nice. Thanks.

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