COMP Cams Valve Seals 5/16 Viton Metalb - cca519-8 missing-image -cc Engine Components::Timing Chains 1968-1974

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COMP Cams Valve Seals 5/16 Viton Metalb - cca519-8 missing-image -cc Engine Components::Timing Chains 1968-1974COMP Cams offers a complete line of valve stem oil seals, from the stock GM o ring to the positive stop PTFE seal. These seals are a must to keep unwanted oil from entering the combustion chamber through the clearance in the valve guides. The o ring seals use the standard retainer and oil splash shield. The umbrella seal is normally used when a larger than stock diameter spring is used, and in the case of a double spring, the positive stop PTFE seal