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COMP Cams Viton valve seal (511) is part of a comprehensive valve stem seal range intended to keep oil from entering the combustion chamber through guide clearance. Specified for LS applications with 8mm valves and .500" OD guides, the .600" OD Viton seal offers the sealing properties and spring clearance desirable in many performance and OE replacement scenarios.
COMP Cams Valve Seal Viton GM LS1 .313
