COMP Cams offers a complete line of valve seals, from the stock GM O-rings to the positive-stop PTFE seals. They 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 seals are normally used when a larger-than-stock diameter spring is used. In the case of a double spring, the positive stop PTFE seals are used. For triple-spring applications, use the smaller-diameter Viton® seals.

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COMP Cams Valve Seal, Steel Viton, .500 in. Guide Size, 8mm Valve Stem, Each

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COMP Cams Valve Seal, PTFE, .530 in. Guide Size, 11/32 in. Valve Stem, Set of 8

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COMP Cams Valve Seal, Black Viton, .494 in. Guide Size, 11/32 in. Valve Stem, Each

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MANLEY Valve Stem Seal, 11/32 in. Stem, .530 in. Guide OD., Set of 8

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COMP Cams Valve Seal, PTFE, .530 in. Guide Size, 5/16 in. Valve Stem, Each

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