Thumpr 227/241 Hydraulic Flat Cam for Pontiac 265-455
Thumpr™ 227/241 Hydraulic Flat Cam for Pontiac 265-455 Thumpr™™™ - High performance street, stock converter ok, best with 2000+ converter and gears. Choppy/thumping idle.
SKU
51-600-5
$209.97
Grind Number: 279TH7
Engine Family: Pontiac 265-455 c.i. 8 Cyl. (1955-1981)
RPM Operating Range: 2,000-5,800
Cam Type: Hydraulic Flat Tappet
Lifter Style: Hydraulic Flat Tappet
Camshaft Series: Thumpr
Camshaft Gear Attachment: 1-Bolt
Usage: Street/Performance
Valve Springs Required: Yes
Camshaft Material: Cast Iron
California Proposition 65: WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov
Advertised Intake Duration: 279
Advertised Exhaust Duration: 297
Intake Duration at .050 Inch Lift: 227
Exhaust Duration at .050 Inch Lift: 241
Intake Valve Lift: 0.478
Exhaust Valve Lift: 0.465
Lobe Separation: 107
Assembly Lubricant Included: Yes
Intake Centerline: 102
Lobe Lift Intake: 0.319
Lobe Lift Exhaust: 0.31
Valve Timing @ 0.006 Lift:
Exhaust Close ATDC: 41
Exhaust Open BBDC: 76
Intake Open BTDC: 36
Intake Close ABDC: 63
