COMP Cams Super Valve Locks Eb 5/16in - cca618-100 missing-image -cc Tonneau Covers::Bed Covers -

-cc Tonneau Covers::Bed Covers - Roll Up 1977-1978 GMC K35 High Sierra L6

Powered by two "C" batteries (not included)

Retainers 1981-1986 Chevrolet K20 Custom V8

-cc Engine Components::Valve Locks 1964-1971 Chrysler 300 Base V8

4638cc Engine Components::Timing Chains 1955-1957 Chevrolet Truck Base V8

COMP Cams Super Valve Locks Eb 5/16in - cca618-100 missing-image -cc Tonneau Covers::Bed Covers -Most 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.