Keyway Adjustable Billet Timing Sets; Chevy 396-454

Induction hardened and precision machined steel billet gears for bullet proof durability

Feature 9 keyway crank sprocket for 2-degree incremental adjustability, 8-degree maximum advance/retard

Pre-stretched, heat-treated double roller timing chain with heavy-duty large pin design

Includes Torrington roller thrust bearing for reduced friction

Ideal for all street performance and race applications