.308"/5/16" Valve Stem Size

CO610-16

610-16

Wider angle (10°) locks better distribute the ever increasing valve spring loads over the retainer than typical 7° locks reducing the chance of "pull-through" failure Precision-machined rather than stamped for the ultimate in accuracy Super-tough, fatigue resistant alloy material Inside tang-to-taper relationship held tightly for repeatable valve spring installed heights For simplicity, any Super Lock fits any COMP Cams 10° retainer - just choose the correct lock for your valve size and application Super Locks are recommended in all race applications