COMP Cams Super Valve Locks 3/8in-.050 1 - cca609-100 missing-image 4343cc Engine Components::Rocker Arms 1955-1957

4343cc Engine Components::Rocker Arms 1955-1957 Chevrolet Truck 3600 V8

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CS 7/16 Gold Std 1PC Stud Diameter : 7/16" California Proposition 65 : WARNING: This product contains a chemical known to the State of California to cause cancer

COMP Cams Super Valve Locks 3/8in-.050 1 - cca609-100 missing-image 4343cc Engine Components::Rocker Arms 1955-1957Most people believe that the tang inside a valve lock holds the retainer and valve spring in place while the engine is running, but this isnt the case. The cross section of material in the tang is not strong enough to withstand open spring loads of 1000 lbs. 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 the outside surface of the lock.