COMP Cams 7 Valve Locks - Hardened Steel - Single Groove - 5/16" - (Set of 16) 10280 Shoes have many features including

Shoes have many features including reinforced lace

Machined Accent

8 backing washers

and a oversized

COMP Cams 7 Valve Locks - Hardened Steel - Single Groove - 5/16" - (Set of 16) 10280 Shoes have many features includingMost people believe that the tang inside a valve lock is what actually holds the valve spring retainer and spring in place while the engine is running. This is not the case. The cross section of material in the tang is not strong enough to withstand today's open spring loads of 1000 pounds or more! The sole purpose of the tang is to temporarily locate the lock, retainer, and spring relative to the valve until the taper of the retainer can nest around