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COMP Cams Valve Seal Viton GM LS1 .313
COMP Cams Valve Seal Viton GM LS1 .313
COMP Cams Valve Seal Viton GM LS1 .313
COMP Cams Valve Seal Viton GM LS1 .313
COMP Cams Valve Seal Viton GM LS1 .313

COMP Cams Valve Seal Viton GM LS1 .313

COMP Cams

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Providing the best sealing properties and spring clearance, viton valve seals are an excellent choice in performance applications. The 511 seals have a .600" OD and fit LS applications with 8mm valves and .500" OD guides.