All timing sets are produced using billet steel for both the crank and camshaft sprockets.
Timing chain sets have 9 keyways unless otherwise stated. Smaller bores tend to be best suited to 7 crank keyways, although engines like Small Block Chevrolets etc. come with 9 keyways which allows more adjustment for dialling in the cam. Crankshaft sprocket keyways are in 2-degree increments unless otherwise noted.
Most Gold Series timing sets have a one-piece Torrington thrust bearing fitted and all have both sprockets nitrided.