This set contains 3/8" two-groove hardened steel street locks for Chrysler applications, supplied as a set of twelve. The street-style locks are intended for lighter valve spring loads typical of stock rebuilds and serve as direct replacements where that stem size and groove count are required. Verify lock fit on the valve stem: a small gap between halves indicates correct sizing and proper seating once the retainer taper creates the collet effect.
COMP Cams Valve Locks 3/8in 2 Groove