Description
COMP’s Positive Stop PTFE valve seals offer more clearance for dual springs with better sealing than o-ring or umbrella seals. These 500 seals have a .630″ outer diameter and fit applications with 5/16″ valves and .530″ OD valve guides.
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This Comp Cams 5/16″ Ptfe Valve Seals – Precision Fit For High-Performance Engines is a curated choice in our Valve Seals line, providing both quality and value.
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