Providing the best sealing properties and spring clearance, viton valve seals are an excellent choice in performance applications. This 530 seal has a .565" OD and fits applications with 5/16" valves...

(8) Black Viton Valve Seals: for 5/16" Valve Stem and .425" Guide Providing the best sealing properties and spring clearance, viton valve seals are an excellent choice in performance applications...

Valve Seals: for 6mm Valves and 11mm Guides - 32 qty Providing the best sealing properties and spring clearance, viton valve seals are an excellent choice in performance applications. The 523 seal...

CNC-machined for precision and anodized for durability CNC-machined for precision and anodized for durability, our seal installer works excellently on both .500" and .530" PTFE valve seals. Our tool...

11/32" Viton Metal Body Seal for use with Triple Spring with a Total OD of .546" Providing the best sealing properties and spring clearance, viton valve seals are an excellent choice in performance...

3/8 x .500" Metal Body Viton Valve Seal Providing the best sealing properties and spring clearance, viton valve seals are an excellent choice in performance applications. The 514 seal has a .625" OD...

3/8 x .530" Metal Body Viton Valve Seal Providing the best sealing properties and spring clearance, viton valve seals are an excellent choice in performance applications. The 515 seal has a .675" OD...

509-16 - Valve Seal Set 5/16" Viton

COMP Cams valve stem Seals are a must to keep unwanted oil from entering the combustion chamber through the clearance in the valve guides. Smaller diameter Viton Seals are available for triple spring...

Viton Valve Seal GM LS1 .313 X .500 Providing the best sealing properties and spring clearance, viton valve seals are an excellent choice in performance applications. The 511 seal has a .600" OD and...

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...