COMP Cams offers a complete line of valve stem Seals, from the stock GM "O-Ring" to the positive-stop PTFE Seal. These Seals are a must to keep unwanted oil from entering the combustion chamber through the clearance in the valve guides. The "O-Ring" Seals use the standard retainer and oil splash shield. The umbrella Seal is normally used when a larger-than-stock diameter spring is used, in the case of a double spring, the positive-stop PTFE Seal is used. We also have a smaller diameter Viton Seal available for triple spring Applications.
Providing the best sealing properties and spring clearance, viton valve seals are an excellent choice in performance applications. The 511 seals have a .600" OD and fit LS applications with 8mm valves and .500" 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
Set of 16 Steel Viton Valve Seals for .500" Guide Size, 8mm Valve Stem
Available individually under 511-1, in a set of 12 under 511-12
VALVE SEAL, VITON GM LS1 .313 valve .500 guide .562 hgt
Engines w/ 0.500" OD Valve Guides and 8 mm Valve Stems
COMP Cams Valve Seal Viton GM LS1 .313
16 Seals .500" Guide, 8mm Valve
Engine Valve Stem Oil Seal Set
Valve Stem Oil Seal
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