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COMP Cams 42-225-4 Xtreme Energy Hydraulic Flat Tappet Camshaft Oldsmobile - for V8

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

Part of: COMP Cams Xtreme Energy Hydraulic Flat Tappet Camshaft Ford

Other options in this family: COMP Cams 31-238-3 COMP Cams 35-238-3 COMP Cams 35-242-3 COMP Cams 51-222-4 COMP Cams 31-242-3

Manufacturer

Picture for manufacturer COMP Cams

Part Number

42-225-4
8 reviews
Sale Price

$309.95

3 left at this price

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Usually delivered within 2 days

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Product Details

The COMP Cams Xtreme Energy 42-225-4 is a hydraulic flat tappet camshaft engineered specifically for Oldsmobile V8 engines from 260 to 455 cubic inches. This performance camshaft delivers a significant boost in mid-range torque and horsepower, making it ideal for street/strip applications and performance street builds.

Camshaft Specifications:

  • Advertised Duration: 280°/288° intake/exhaust
  • Duration @ .050": 240°/246° intake/exhaust
  • Valve Lift: .480"/.501" intake/exhaust (with 1.6:1 rocker ratio)
  • Lobe Separation Angle: 110°
  • Hydraulic flat tappet design for quiet operation and durability
  • Recommended RPM range: 2,000-6,000 RPM

Key Features:

  • Xtreme Energy lobe profiles provide excellent throttle response and power gains
  • Compatible with stock valve springs and factory components in most applications
  • Produces a mild performance idle with good vacuum for power accessories
  • Requires 9.5:1 or higher compression ratio for optimal performance
  • Works with stock or aftermarket cylinder heads and intake manifolds

This camshaft is designed for Oldsmobile engines including the 260, 307, 350, 403, 425, and 455 cubic inch displacements. It pairs well with performance intake manifolds, headers, and carburetor upgrades. Proper valvetrain components including lifters, pushrods, and timing set are required for installation and are sold separately.

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

Grind Number

XE284H

Cam Type

Hydraulic Flat Tappet

Intake Valve Lift

0.541

Exhaust Valve Lift

0.544

Camshaft Material

Cast Iron

Cam and Lifter Kit Upgrade

CL42-225-4

K-Kit Upgrade

K42-225-4

Engine Family

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

SK-Kit Upgrade

SK42-225-4

AMAZON ASIN

B000P5BCAC

Usage

Street/Performance

Assembly Lubricant Included

Yes

Camshaft Gear Attachment

1-Bolt

Lifters Included

No

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.

Exhaust Duration at .050 inch Lift

246

Intake Duration at .050 Inch Lift

240

Advertised Exhaust Duration

296

Camshaft Series

Xtreme Energy

Great prices and quick shipping! They kept me informed of when the item was shipped also. Couldn't be happier!

Great prices. Great live customer service. Very pleased, will definitely order again.

Very good.

Nice website, easy to order

GREAT SERVICE, FAST SHIPPING, WILL USE AGAIN

Excellent service. I called in Monday for a hard to find item which I had ordered from several other online shops who despite saying were In Stock online were not actually in stock at all and the orders were canceled after waiting a week to find out. They had the item in stock as listed on their website and shipped the next day. The price was the cheapest of anyone who actually had the item in stock by a substantial amount.

Lowest prices with quick processing and shipping. Very happy and will shop again!

Best price around, very fast shipping and great service! I will buy from them again!

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