Providing the best sealing properties and spring clearance, viton valve seals are an excellent choice in performance applications. The 520 seals have a .575" OD and fit applications with 5/16" valves and .530" OD guides.
Application Summary:
| Year |
Make/Model |
| Engines |
w/ 0.530" OD Valve Guides and 5/16" Valve Stems |