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COMP Cams 5/16" single-groove hardened steel street locks come as 16 pairs with a 7° angle and are a direct replacement option for stock rebuilds where 5/16" stem size is used. Intended for milder street applications with lighter spring loads, the locks must match valve size and leave a small gap when seated; the tang only temporarily locates the parts until the retainer taper creates the collet effect.
COMP Cams Valve Locks 5/16in Single Groove
