Description: Eliminate chain stretch. GM Performance Parts timing chain sets are designed for use with either performance or stock cams. They have a solid-bushing chain for a true bearing surface that rolls with the sprockets, eliminating chain stretch. Crank gears are machined from stressproof steel. Most GM Performance Parts timing chain sets have three keyways to ensure accurate timing for early or(more)

Description: Eliminate chain stretch. GM Performance Parts timing chain sets are designed for use with either performance or stock cams. They have a solid-bushing chain for a true bearing surface that rolls with the sprockets, eliminating chain stretch. Crank gears are machined from stressproof steel. Most GM Performance Parts timing chain sets have three keyways to ensure accurate timing for early or late-model vehicles, and to allow you to set cam timing 4 degrees advanced, 4 degrees retarded, or stock. However, 50-state (stock replacement) sets have single keyways. GM Performance Parts timing chain sets are not for use above 6,500 rpm. (minimize)