Thumpr 226/241 Hydraulic Flat Cam for Oldsmobile 260-455

Thumpr™ 226/241 Hydraulic Flat Cam for Oldsmobile 260-455. High performance street, stock converter ok, best with 2000+ converter and gears. Choppy/thumping idle.
In stock
Engine Family: Oldsmobile 260-455 c.i. 8 Cylinder (1967-1990)
RPM Operating Range: 2,000-5,800
Grind Number: 279TH7
Cam Type: Hydraulic Flat Tappet
Lifter Style: Hydraulic Flat Tappet
Camshaft Series: Thumpr
Usage: Street/Performance
California Proposition 65: WARNING: Cancer and Reproductive Harm
Advertised Intake Duration: 278
Advertised Exhaust Duration: 296
Intake Duration at .050 Inch Lift: 226
Exhaust Duration at .050 Inch Lift: 241
Intake Valve Lift: 0.491
Exhaust Valve Lift: 0.476
Lobe Lift Intake: 0.307
Lobe Lift Exhaust: 0.298
Lobe Separation: 107
Intake Centerline: 102
Exhaust Close ATDC: 41
Intake Open BTDC: 35
Exhaust Open BBDC: 76
Intake Close ABDC: 63
Camshaft Gear Attachment: 1-Bolt
Component Part Number
CL-Kit Upgrade: CL42-600-5
K-Kit Upgrade: k42-600-5