Fit only LS7 type Gen III/IV engines with 3 bolt cam. Include induction hardened Steel billet Gears for bullet proof durability. Feature infinitely adjustable Camshaft sprocket 6-degree maximum advance/retard.3 keyway crank sprocket for additional 4-degree incremental adjustability. Pre-stretched heat-treated double Roller chain with heavy-duty large pin design; chain available separately. Torrington Roller trust bearing reduces friction. Ideal for all street performance and race applications.
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