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The COMP Cams Hi‑Tech Belt Drive System for Chevrolet big‑block engines uses an extreme-application belt and an infinitely adjustable Vernier sprocket for precise timing. Its idler system reduces belt flap across the RPM range and the design absorbs crankshaft harmonics to protect valve train stability. Includes cam thrust adjustment without shims and double-lip seals for long life and crankcase vacuum retention.
COMP Cams Hi-Tech Belt Drive System Chevrolet
