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COMP Cams 5/16" Viton metal‑body valve seal engineered to prevent oil intrusion into combustion chambers and preserve valve spring clearance. The seal’s outside diameter is approximately .545–.546" and it fits 5/16" valves with .500" OD guides. These seals are intended for performance applications and routine rebuilds where durable Viton material improves sealing life compared with standard compounds.
COMP Cams Valve Seals 5/16 Viton Metal Body
