Description
Set of 16 PTFE Valve Seals for .500″ Guide Size5/16″ Valve StemFits: 5/16″ Valve Stems – .500″ Guides (.600″ Seal Diameter)Valves Seals keep unwanted oil from entering the combustion chamber through clearance in the valve guides. Smaller diameter than COMP Umbrella Seals to allow use with double springsAvailable individually under 513-1, available in a set of 12 under 513-12





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