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COMP Cams metal-body Viton valve seals (5/16" x .530") combine strong sealing with additional spring clearance for higher-demand builds. The 516 seal has a .675" outer diameter and fits 5/16" valve stems and .530" guide bores, providing the Viton properties and dimensional space needed for upgraded valve spring packages.
COMP Cams Valve Seals Metal Body Viton
