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COMP Cams 42-228-4 High Energy Hydraulic Flat Camshaft 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

42-228-4
7 reviews
Sale Price

$309.95

In Stock (5)

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Product Details

The COMP Cams 42-228-4 High Energy hydraulic flat tappet camshaft delivers proven performance for Oldsmobile 260-455 cubic inch V8 engines. This camshaft features a 212/212 duration split, providing a balanced power curve with excellent mid-range torque and strong top-end horsepower.

Key Specifications:

  • Advertised Duration: 268/268 degrees
  • Duration at .050": 212/212 degrees
  • Valve Lift (with 1.6:1 rocker): .420"/.442" intake/exhaust
  • Lobe Separation Angle: 110 degrees
  • Recommended RPM Range: 1,500-5,000 RPM
  • Hydraulic flat tappet design for reliable street performance

Performance Characteristics:

  • Smooth idle quality with moderate lope
  • Improved throttle response throughout the RPM range
  • Excellent choice for street/strip applications
  • Compatible with stock torque converters and rear gear ratios
  • Works with factory valve springs and components

This High Energy series camshaft is designed for enthusiasts seeking noticeable performance gains without sacrificing streetability. The hydraulic flat tappet design ensures durability and low maintenance, making it ideal for daily drivers and weekend cruisers. Compatible with Oldsmobile 260, 307, 350, 403, 425, and 455 cubic inch engines.

Note: New lifters are required with camshaft installation. Proper break-in procedure must be followed using appropriate break-in oil and valve spring load considerations.

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

260

Grind Number

260H

Cam Type

Hydraulic Flat Tappet

Exhaust Valve Lift

0.447

Intake Valve Lift

0.447

Camshaft Material

Cast Iron

Cam and Lifter Kit Upgrade

CL42-228-4

Camshaft Series

High Energy

K-Kit Upgrade

K42-228-4

Engine Family

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

SK-Kit Upgrade

SK42-228-4

AMAZON ASIN

B000V9HYJ0

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 Intake Duration

260

Basic Operating RPM Range

1,200-5,200

Exhaust Duration at .050 inch Lift

212

Intake Duration at .050 Inch Lift

212

Autoplicity had the lowest price by far and shipping was very fast (ordered Wednesday evening, arrived Saturday morning). I will definitely order from Autoplicity again!

Very pleasant order over the phone. Gentleman was smart, cheerful and helpful.

it better fit

Just what you want from a merchant but don't expect; fast, courteous service and attention to the details of your order. I'm a happy consumer. Thank you, Autoplicity. I'll be back.

Autoplicity cares about there customers. I ordered a flash programmer and got to the last page and never got a confirmation of the order. I used the website chat and talked to somebody about it right away. So I ordered again and got a conformation. But both went though. Autoplicity called me next day a.m. to see if I made a mistake. Thanks for letting me know and correcting to one order. Saved me from shipping back a product I dind't need.

Good products with low prices. Easy website and pament options.

Exact product as promised with the best price on the internet. Product shipped fast and had a tracking number to keep me up to date on my order. I would order from again without hesitation and will tell friends.

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