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.
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
Typically requiring no machine work, our 504 umbrella seals are a great option for stock guide applications with 3/8" valves needing a seal replacement.
Available individually under 504-1, available in a set of 16 under 504-16
Set of 12 Umbrella Valve Seals for Stock Guide Size, 3/8" Valve Stem
Engines w/ Stock/Unmodified valve guides and 3/8" Valve Stems
Umbrella Seals Stock Guide 3/8" Valve
COMP Cams Valve Seals 3/8in UmBRella
Engine Valve Stem Oil Seal Set
VALVE SEALS, 3/8" UMBRELLA
Valve Stem Oil Seal
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