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COMP Cams 42-308-4 Magnum Hydraulic Flat Tappet Camshaft Oldsmobile - 224/224 260-455

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

Part of: COMP Cams Magnum Hydraulic Flat Tappet Camshaft Ford

Other options in this family: COMP Cams 12-212-2 COMP Cams 35-226-3 COMP Cams 20-232-4 COMP Cams 32-225-4 COMP Cams 12-211-2

Manufacturer

Picture for manufacturer COMP Cams

Part Number

42-308-4
6 reviews
Sale Price

$309.95

In Stock (10+)

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Product Details

The COMP Cams 42-308-4 Magnum camshaft delivers proven performance for Oldsmobile 260-455 cubic inch V8 engines. This hydraulic flat tappet camshaft features a 224/224 duration profile designed to provide excellent mid-range torque and horsepower gains while maintaining good street manners and idle quality.

Camshaft Specifications:

  • Duration at .050": 224°/224° (intake/exhaust)
  • Advertised duration: 268°/268°
  • Valve lift: .420"/.442" (with 1.6 rocker ratio)
  • Lobe separation angle: 110°
  • Hydraulic flat tappet design
  • RPM range: 1,500-5,000

Key Features:

  • Designed specifically for Oldsmobile 260, 307, 350, 403, and 455 cubic inch engines
  • Excellent power increase over stock camshaft
  • Smooth idle and good vacuum for power brakes
  • Compatible with stock torque converters and rear gear ratios
  • Works well with stock or mildly modified cylinder heads
  • Ideal for daily drivers, towing, and street performance applications

This camshaft requires hydraulic flat tappet lifters (not included) and is best suited for street vehicles looking for a noticeable performance improvement without sacrificing reliability or drivability. Proper break-in procedures with appropriate lubricants are essential for hydraulic flat tappet camshafts.

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

Grind Number

270H

Cam Type

Hydraulic Flat Tappet

Exhaust Valve Lift

0.501

Intake Valve Lift

0.501

Camshaft Material

Cast Iron

Cam and Lifter Kit Upgrade

CL42-308-4

K-Kit Upgrade

K42-308-4

Camshaft Series

Magnum

Engine Family

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

SK-Kit Upgrade

SK42-308-4

AMAZON ASIN

B000CEM55M

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

270

Advertised Exhaust Duration

270

Usage

Street/Strip

Basic Operating RPM Range

1,800-5,800

Exhaust Duration at .050 inch Lift

224

Intake Duration at .050 Inch Lift

224

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