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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 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. Street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, very rough idle.
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
Make
Buick
Recommended Components
Break-In Lube
159