We use cookies to provide you with the best possible user experience. By continuing to use our site, you agree to their use. To learn more, view our Cookie Policy.
Classic Thumpr 227/241 Hydraulic Flat Cam for Buick 364, 401, 425 Nailhead
Classic Thumpr™ 227/241 Hydraulic Flat Cam for Buick 364, 401, 425 Nailhead. Street applications. Will work with a stock converter but functions best with 2000+ converter and gears. Thumping idle.
Available Soon
SKU
91-600-5
TEMPORARILY OUT OF STOCK, ORDER NOW!
$395.06
$438.95
Engine Family: Buick Nailhead 364, 401, 425 c.i. 8 Cylinder (1957-1966)
RPM Operating Range: 2,000-5,800
Grind Number: 279TH7
Cam Type: Hydraulic Flat Tappet
Lifter Style: Hydraulic Flat Tappet
Camshaft Series: Classic Thumpr
Usage: Street/Performance
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 Lift Intake: 0.319
Lobe Lift Exhaust: 0.31
Lobe Separation: 107
Intake Centerline: 102
Exhaust Close ATDC: 41
Intake Open BTDC: 36
Exhaust Open BBDC: 76
Intake Close ABDC: 63
Component
Part Number
Break-In Lube: 159
