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

$286.95
Mutha' Thumpr™ 235/249 Hydraulic Flat Cam for Pontiac 265-455. High performance street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, rough idle.
In stock
SKU
51-601-5
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More Information
UPC 036584213253
Manufacturer COMP Cams®
Emissions Code
Engine Family Pontiac 265-455 c.i. 8 Cyl. (1955-1981)
RPM Operating Range 2,200-6,100
Cam Type Hydraulic Flat Tappet
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 287
Advertised Exhaust Duration 305
Intake Duration at .050 Inch Lift 235
Exhaust Duration at .050 Inch Lift 249
Intake Valve Lift 0.49
Exhaust Valve Lift 0.475
Lobe Lift Intake 0.327
Lobe Lift Exhaust 0.317
Lobe Separation 107
Intake Centerline 102
Valve Timing Lift 0.006
Exhaust Close ATDC 45
Intake Open BTDC 40
Exhaust Open BBDC 80
Intake Close ABDC 67
Lifter Style Hydraulic Flat Tappet
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