Providing the best sealing properties and spring clearance, viton valve seals are an excellent choice in performance applications. The 520 seal has a .575" OD and fits applications with 5/16" valves and .530" OD 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
Available in a set of 8 under 520-8, available in a set of 12 under 520-12, available in a set of 16 under 520-16
1 Metal Body Viton Valve Seal for .530" Guide Size, 5/16" Valve Stem
Engines w/ 0.530" OD Valve Guides and 5/16" Valve Stems
COMP Cams Valve Seal 5/16 Viton Metal Body
VALVE SEAL, 5/16 VITON METAL B ODY W/.530
5/16 X .530 Viton Metal Body Seal 575 OD
Valve Seal .530" Guide, 5/16" Valve
Engine Valve Stem Oil Seal
Valve Stem Oil Seal
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