COMP Cams Valve Seal 11/32in UmBRella - 502-1

1 Umbrella Valve Seal for Stock Guide Size, 11/32" Valve Stem

Application: Engines w/ Stock/Unmodified valve guides and 11/32" Valve Stems

Typically requiring no machine work, our 502 umbrella seal is a great option for stock guide applications with 11/32" valves needing a seal replacement.

<ul><li>Fits: 11/32" Valve Stems - OE-Size Valve Guides (.750" Outer Diameter)</li><li>Valves Seals keep unwanted oil from entering the combustion chamber through clearance in the valve guides</li><li>Normally used when a larger-than-stock diameter spring is used</li><li>Requires no machining.

COMP 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 is used. Smaller diameter Viton seals are also available for triple spring applications. Both the o-ring and the umbrella seals require no machining, but when using the PTFE seal it is necessary to disassemble the heads and machine the top of the guide with a special cutter.