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COMP Cams 42-226-4 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

42-226-4
4 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 42-226-4 Xtreme Energy camshaft is a hydraulic flat tappet performance cam designed specifically for Oldsmobile V8 engines ranging from 260 to 455 cubic inches. This camshaft delivers a noticeable increase in mid-range power and torque while maintaining good drivability and vacuum characteristics for street performance applications.

Camshaft Specifications:

  • Advertised Duration: 268°/274° (Intake/Exhaust)
  • Duration @ .050": 218°/224° (Intake/Exhaust)
  • Valve Lift: .441"/.458" (Intake/Exhaust) with 1.6 rocker ratio
  • Lobe Separation Angle: 110°
  • RPM Range: 1,500-5,500
  • Hydraulic flat tappet design for quiet, reliable operation

Key Features:

  • Xtreme Energy lobe profiles for maximum performance across the RPM range
  • Optimized for street performance with good idle quality and vacuum
  • Compatible with stock valve springs and components in most applications
  • Ideal for vehicles with stock or mildly modified engines, headers, and 2,500+ stall converters
  • Works well with manual or automatic transmissions

This camshaft is an excellent choice for enthusiasts looking to enhance the performance of their Oldsmobile V8 without sacrificing streetability. The Xtreme Energy series is known for delivering strong throttle response and a muscular exhaust note while remaining compatible with power accessories and air conditioning.

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

294

Grind Number

XE294H

Cam Type

Hydraulic Flat Tappet

Intake Valve Lift

0.554

Exhaust Valve Lift

0.558

Basic Operating RPM Range

2,800-6800

Intake Duration at .050 Inch Lift

250

Camshaft Material

Cast Iron

Cam and Lifter Kit Upgrade

CL42-226-4

K-Kit Upgrade

K42-226-4

Engine Family

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

SK-Kit Upgrade

SK42-226-4

AMAZON ASIN

B001R9H7UY

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.

Advertised Exhaust Duration

306

Exhaust Duration at .050 inch Lift

256

Camshaft Series

Xtreme Energy

Very satisfied! My intake shipped on Friday and I received it on Tuesday. Not only super fast shipping, but a great deal to boot!

I ordered a hitch off of this site for Christmas, I have never heard of it nor did I know how they were, but they are great! Got my package in I'd say 4 days, very fast and it was exactly what I wanted! Only down fall was they charged me 3 times and I was short 150$ for a few days. I got my money back and I would definitely order again.

Prompt shipment, I got everything under 5 days even if part of my order was drop shipped (in stock items arrived in 2 days). Good communication, would do business again in a heartbeat.

Very good customer service asked about a lot of different springs and parts for my Mazdaspeed 3.

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