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

Big Mutha Thumpr: Street/strip needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.

SKU
91-602-5
$299.49
 
Grind Number: 295TH7
Engine Family: Buick Nailhead 364, 401, 425 c.i. 8 Cylinder (1957-1966)
RPM Operating Range: 2,500-6,400
Cam Type: Hydraulic Flat Tappet
Lifter Style: Hydraulic Flat Tappet
Camshaft Series: Classic Thumpr
Usage: Street/Strip
Valve Springs Required: Yes
Camshaft Material: Cast Iron
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 Separation: 107
Assembly Lubricant Included: Yes
Intake Centerline: 102
Lobe Lift Intake: 0.334
Lobe Lift Exhaust: 0.324
Valve Timing @ 0.006 Lift:
Exhaust Close ATDC: 49
Exhaust Open BBDC: 84
spec-card-valve-timing
Intake Open BTDC: 44
Intake Close ABDC: 71
Component Part Number
Break-In Lube: 159