This Donovan 392/417 Gen 1 Hemi cam gear is made from billet heat treated steel, the bore has been precision ground on state of the art machinery for concentricity on the end of the cam hub.
The gear has 52 teeth, is .500" wide on the teeth, .230" thick where the bolts got thru the gear, 1.50" center bore and the finish is bead blasted steel. Cam gear has a seven hole vernier to adjust cam timing using 5/16-24" holes to mount to the cam hub.
Fits 354, 392 and 417 Gen 1 Hemi camshafts.
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