COMP Cams 3/8 Valve Stem Seals Posi. Stop Teflon .530 R10015S 3000+ stall or 5 speed

3000+ stall or 5 speed

To solve this common dilemma with aftermarket heads

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COMP Cams 3/8 Valve Stem Seals Posi. Stop Teflon .530 R10015S 3000+ stall or 5 speedCOMP Cams offers a complete line of valve stem seals, from the umbrella seals to the positive stop Teflon seal. These seals are a must to keep unwanted oil from entering the combustion chamber through the clearance in the valve guides. The umbrella seal is normally used when a larger than stock diameter spring is used, in the case of a double spring, the positive stop Teflon seal is used. The umbrella seals require no machining, but with the Teflon