Providing the best sealing properties and spring clearance, viton valve seals are an excellent choice in performance applications. The 518 seal has a .575" OD and fits applications with 11/32"" valves and .530" OD guides.
Available in a set of 8 under 518-8, available in a set of 12 under 518-12, available in a set of 16 under 518-16
Engines w/ 0.530" OD Valve Guides and 11/32" Valve Stems
