Classic Mutha' Thumpr 234/249 Hydraulic Flat Cam for Chevrolet 348-409

Mutha' Thumpr™ - High performance street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, rough idle.

SKU
48-601-5
$209.97
 
Engine Family: Chevrolet 348-409 c.i. 8 Cylinder (1958-1965)
RPM Operating Range: 2,000-5,500
Grind Number: 287TH7
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: 286
Advertised Exhaust Duration: 304
Intake Duration at .050 Inch Lift: 234
Exhaust Duration at .050 Inch Lift: 249
Intake Valve Lift: 0.525
Exhaust Valve Lift: 0.509
Lobe Lift Intake: 0.3
Lobe Lift Exhaust: 0.291
Lobe Separation: 107
Intake Centerline: 102
Assembly Lubricant Included: Yes
Valve Timing @ 0.006 Lift:
Exhaust Close ATDC: 45
Exhaust Open BBDC: 80
spec-card-valve-timing
Intake Open BTDC: 39
Intake Close ABDC: 67
Component Part Number
Break-In Lube: 159