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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

Classic Big Mutha Thumpr 227/241 Hydraulic Flat Cam Buick 364, 401, 425 Nailhead

Classic Big Mutha Thumpr 227/241 Hydraulic Flat Cam Buick 364, 401, 425 Nailhead

Classic Mutha' Thumpr 227/241 Hydraulic Flat Cam Buick 364, 401, 425 Nailhead

$453.95
Classic Mutha' Thumpr™ 227/241 Hydraulic Flat Cam Buick 364, 401, 425 Nailhead. Street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, very rough idle.
TEMPORARILY OUT OF STOCK
SKU
91-601-5
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More Information
UPC 036584213284
Manufacturer COMP Cams®
Emissions Code
Engine Family Buick Nailhead 364, 401, 425 c.i. 8 Cylinder (1957-1966)
RPM Operating Range 2,200-6,100
Cam Type Hydraulic Flat Tappet
Camshaft Series Classic Thumpr
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
Recommended Components
Component Part Number
Break-In Lube 159
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