Classic Big Mutha' Thumpr 242/257 Hydraulic Flat Cam for Chevrolet 348-409

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

SKU
48-602-5
$209.97
 
Grind Number: 295TH7
Engine Family: Chevrolet 348-409 c.i. 8 Cylinder (1958-1965)
RPM Operating Range: 2,500-6,000
Cam Type: Hydraulic Flat Tappet
Lifter Style: Hydraulic Flat Tappet
Camshaft Series: Classic Thumpr
Camshaft Gear Attachment: 3-Bolt
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: 294
Advertised Exhaust Duration: 312
Intake Duration at .050 Inch Lift: 242
Exhaust Duration at .050 Inch Lift: 257
Intake Valve Lift: 0.537
Exhaust Valve Lift: 0.521
Lobe Separation: 107
Assembly Lubricant Included: Yes
Intake Centerline: 102
Lobe Lift Intake: 0.307
Lobe Lift Exhaust: 0.298
Valve Timing @ 0.006 Lift:
Exhaust Close ATDC: 49
Exhaust Open BBDC: 84
spec-card-valve-timing
Intake Open BTDC: 43
Intake Close ABDC: 71
Component Part Number
Break-In Lube: 159