COMP Cams · New
COMP Cams Belt Drive Chevy SB Olds Rock
MPN 6504 · Store SKU cca6504
Supplier stock checked 11/7/2026, 6:14:55 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
Extreme application belt for high rpm and high compression durability. Infinitely adjustable Vernier sprocket for absolute timing accuracy. Unique belt idler system reduces flap throughout rpm range. Designed to absorb crankshaft harmonics to guard against performance robbing valve train instability. Utilizes a unique Camshaft thrust adjustment system without shims. Includes double lip Seals for long life and maximum crankcase vacuum. Ideal for Serious street performance and race applications. Infinitely adjustable with an extreme application belt, the Hi-Tech belt drive for SBC/Olds Rocket w/ raised cam location reduces flap through the RPM range while absorbing harmonics to performance-robbing stop valve train instability. Hi-Tech Belt Drive for Chevrolet Small Block/Olds Rocket w/ Raised Cam
Manufacturer fitment & guides
Check 6504 against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y