This special performance single roller design timing chain kit cane be used on all 1987 and newer small block engines with roller lifter camshaft, except LT1, LT4 and 1997 and later LS1.  This kit is quieter than the double roller chain.

This kit includes the following components:
Camshaft sprocket, crankshaft sprocket, chain, retainer, three bolts, and two bolts.
 
Use these components for single service requirements.
They will not work on flat tappet camshafts.
Timing Chain Style: Single roller
Camshaft Gear Attachment: 3-bolt
Maximum Advance/Retard at Camshaft: None
Maximum Advance/Retard at Crankshaft: None
Thrust Bearing Included: No
Offset Bushings Included: No
Gaskets Included: No
Bolts/Studs Included: No
Cam Sprocket Material: Iron
Crank Sprocket Material: Iron

Notes: Designed for factory hydraulic roller camshafts only. Chevrolet Performance 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 stress proof steel.

Most Chevrolet Performance 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.

Chevrolet Performance timing chain sets are not for use above 6,500 rpm.