COMP Cams Valve LocksEb Mach Stl 7Deg S 641-100 Overland Sector To determine the final specification

To determine the final specification

Sierra Classic 1979 - 1980 GMC C1500 Suburban Sierra Grande

SPL cannot confirm fitment with aftermarket shocks and coilovers ***

Satin Finish: Our specialized luster laminate offers a sophisticated

COMP Cams Valve LocksEb Mach Stl 7Deg S 641-100 Overland Sector To determine the final specificationCOMP Cams Valve Locks 641 100 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 isn't 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