COMP Cams · New
COMP Cams Camshaft Kit CB 299T HR-107 B
MPN GK11-602-8 · Store SKU ccaGK11-602-8
Supplier stock checked 11/7/2026, 2:13:46 PM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
Big Mutha' Thumpr 243/257 Hydraulic Roller GK-Kit for Chevrolet Big Block 396-454. Street/strip, needs 9.5:1 compression, 2800+ stall, intake, Gears, and headers, very rough idle. Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle. Big Mutha' Thumpr 243/257 Hydraulic Roller GK-Kit Chevrolet Big Block 396-454
Manufacturer fitment & guides
Check GK11-602-8 against the manufacturer’s application information below.
Part-specific notes
- Not CARB approved. Destination and intended-use restrictions must be checked before sale.
- Emissions acknowledgement required before purchase.
- California Proposition 65: Y