Thumpr Hydraulic Flat Tappet Camshaft <br> 67-90 Oldsmobile 260-455

Description:

Thumpr 226/241 Hydraulic Flat Cam for Oldsmobile 260-455. High performance street, stock converter ok, best with 2000+ converter and Gears. Choppy/thumping idle.

Features:

Camshaft Series: Thumpr

Lobe Separation: 107 DD

Intake Valve Lift: 0.491 IN

Exhaust Valve Lift: 0.476 IN

Lifters Included: No

Valve Springs Required: Yes

Assembly Lubricant Included: Yes

Camshaft Gear Attachment: 1-Bolt

Camshaft Material: Cast Iron

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

Cam and Lifter Kit Upgrade: CL42-600-5

Usage: Street/Performance

K-Kit Upgrade: K42-600-5

Lifter Type: Hydraulic Flat Tappet

Cam Type: Hydraulic Flat Tappet

Grind Number: 279TH7

Grind Number: 279TH7

Basic Operating RPM Range: 2,000-5,800

Intake Duration at .050 Inch Lift: 226 DD

Exhaust Duration at .050 inch Lift: 241 DD

Advertised Intake Duration: 278 DD

Advertised Exhaust Duration: 296 DD

Package Includes:

Engine Camshaft