Thumpr Hydraulic Roller Cam & Lifter Kit <br> 55-81 Pontiac 265-455

Description:

CL-KIT - Cam and Lifter Kit Includes: Camshaft, Lifters, Assembly Lube, Decals and Instructions.

Features:

Camshaft Series: Thumpr

Lobe Separation: 107 DD

Intake Valve Lift: 0.532 IN

Exhaust Valve Lift: 0.519 IN

Lifters Included: No

Valve Springs Required: Yes

Assembly Lubricant Included: No

Camshaft Gear Attachment: 1-Bolt

Camshaft Material: Billet Steel

K-Kit Upgrade: K51-602-11

Lifter Type: Hydraulic Roller

Usage: Street/Strip

Cam Type: Hydraulic Roller

Engine Family: Pontiac 265-455 C.I. 8 Cylinder (1955-1981)

Grind Number: 299THR7

Grind Number: 299THR7

Basic Operating RPM Range: 2,300-6,100

Intake Duration at .050 Inch Lift: 243 DD

Exhaust Duration at .050 inch Lift: 257 DD

Advertised Intake Duration: 299 DD

Advertised Exhaust Duration: 319 DD

Package Includes:

Engine Camshaft and Lifter Kit