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.
PTFE; Seal; Valve Guide; Valve Guide Seal; Valve Stem Seal; Valve Seals; 5/16" Valve Seals; 11/32" Valve Seals; .530" Valve Seal; Umbrella; O-Ring Seals; Viton Seals; 8 mm Seals
Set of 16 PTFE Valve Seals for .530" Guide Size, 5/16" Valve Stem
Available individually under 500-1, in a set of 12 under 500-12
Engines with 0.530" OD Valve Guides and 5/16" Valve Stems
16 PTFE Seals .530" Guide, 5/16" Stem
COMP Cams Valve Seals 5/16in PTFE
Engine Valve Stem Oil Seal Set
Valve Stem Oil Seal
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