Keyway Adjustable Billet Timing Set for Chevrolet 396-454 Big Block 

Keyway Adjustable Billet Timing Set for Chevrolet 396-454 Big Block

• 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 performance and race applications