We use cookies to provide you with the best possible user experience. By continuing to use our site, you agree to their use. To learn more, view our Cookie Policy.
Big Mutha' Thumpr 243/257 Hydraulic Roller Cam K-Kit for Chevrolet Small Block 262-400
Big Mutha' Thumpr 243/257 Hydraulic Roller Cam K-Kit for Chevrolet Small Block. Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.
Available Soon
SKU
K12-602-8
TEMPORARILY OUT OF STOCK, ORDER NOW!
$1,661.95
Engine Family: Chevrolet 262-400 c.i. 8 Cylinder (1958-1998)
RPM Operating Range: 2,500-6,200
Grind Number: 299THR7
Cam Type: Hydraulic Roller
Lifter Style: Hydraulic Roller
Camshaft Series: Thumpr
Usage: Street/Strip
California Proposition 65: WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov
Advertised Intake Duration: 299
Advertised Exhaust Duration: 319
Intake Duration at .050 Inch Lift: 243
Exhaust Duration at .050 Inch Lift: 257
Intake Valve Lift: 0.531
Exhaust Valve Lift: 0.517
Lobe Separation: 107
Camshaft Gear Attachment: 3-Bolt
Note
Description
77
1010