Replace your stock timing chain with a Precision Gear Drive. Known for years to simulate that “Blower sound,” Gears are cut from Billet Steel, and Heat-Treated for extreme durability. The Heavy Duty Idler Shafts are the key to an accurate and consistent Power Stroke.
Only Cloyes offers a three Keyway Crank Gear allowing you to adjust your timing plus or minus 4 degrees.