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Mutha' Thumpr 235/249 Hydraulic Roller for Pontiac 265-455

$551.95
Mutha' Thumpr™ 235/249 Hydraulic Roller for Pontiac 265-455. High performance street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, rough idle. Distributor gear upgrade required.
In stock
SKU
51-601-11
More Information
UPC 036584313038
Manufacturer COMP Cams®
Emissions Code
Engine Family Pontiac 265-455 c.i. 8 Cyl. (1955-1981)
RPM Operating Range 2,000-5,800
Cam Type Hydraulic Roller
Camshaft Series Thumpr
Camshaft Gear Attachment 1-Bolt
Usage Street/Strip
California Proposition 65 WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov
Advertised Intake Duration 291
Advertised Exhaust Duration 311
Intake Duration at .050 Inch Lift 235
Exhaust Duration at .050 Inch Lift 249
Intake Valve Lift 0.522
Exhaust Valve Lift 0.508
Lobe Separation 107
Lifter Style Hydraulic Roller