COMP Cams
MThmpr 235/249 H-Rlr GK-Kit BBC 396-454
SKU: C007 GK11-601-8
Description
Part #: GK11-601-8
Mutha' Thumpr 235/249 Hydraulic Roller Cam
High performance street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, rough idle.
This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | COMP Cams |
| Part Number | C007 GK11-601-8 |
Videos
1985 Chevy C20 454 w/ Comp Cam Mutha Thumpr & Flowmaster Super 40's
454 comp thumpr cam idle sound
Thumpr Cam Dyno (Full Version)
COMP Big Mutha' Thumpr (11-602-4) 396 BBC
BBC 462ci Comp cams thumpr 235/249
Thumpr Cams by COMP Cams
1967 Chevelle with 454 big mutha thumper cam
COMP Mutha' Thumpr (11-601-4) 454 BBC
489 big block with comps big muthr thumpr roller cam. #chevrolet #bigblockchevy #compcam #racecar
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
View Full Return Policy