COMP Cams Keyway Adjustable Billet Timing Set Chevy Big Block 396-454

Comp Cams Keyway Adjustable Billet Timing Sets are ideal for all street performance and race applications. A 9 Keyway sprocket allows 2° of incremental adjustability for a total of 8° advance or retard. A Torrington roller thrust bearing is utilized for reduced fricton. The Billet steel gears are induction hardened. A pre-stretched, heat treated double roller chain with a heavy duty large pin design ensures the ultimate reliability and accuracy.