Crane Cams Metal Roller Timing Chain Set:
This all-metal roller timing chain set gives you the proven friction-reducing features of a roller type timing chain plus the strength of all-metal cam and crankshaft sprockets. The crank sprocket has three keyways, allowing you to adjust the cam for increased bottom end or top end power.

Crane Cams Pro-Series Steel Billet Timing Chain Set:
Crane Cams’ Pro-Series steel billet gear and roller chain sets offer the precision, strength and accuracy of billet steel nitride hardened CNC machined camshaft and crankshaft sprockets with the strength, friction reduction and wear resistance of a premium quality German manufactured double-row roller timing chain. The billet 4140 steel nitride hardened crankshaft sprocket features nine separate keyway locations, providing up to eight degrees of advance or retard.