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

Description:

Mutha' Thumpr 234/249 Hydraulic Flat Cam for Oldsmobile 260-455. High performance street/strip, needs 9:1 compression, 2500+ stall, intake, Gears and headers, rough idle.

Features:

Camshaft Series: Thumpr

Lobe Separation: 107 DD

Intake Valve Lift: 0.5 IN

Exhaust Valve Lift: 0.486 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: CL42-601-5

Usage: Street/Strip

K-Kit Upgrade: K42-601-5

Lifter Type: Hydraulic Flat Tappet

Cam Type: Hydraulic Flat Tappet

Grind Number: 287TH7

Grind Number: 287TH7

Basic Operating RPM Range: 2,200-6,100

Intake Duration at .050 Inch Lift: 234 DD

Exhaust Duration at .050 inch Lift: 249 DD

Advertised Intake Duration: 286 DD

Advertised Exhaust Duration: 304 DD

Package Includes:

Engine Camshaft