Providing the best sealing properties and spring clearance, viton valve seals are an excellent choice in performance applications. The 519 seal has a .545" OD and fits applications with 5/16" valves and .500" OD guides.
Available in a set of 8 under 519-8, available in a set of 12 under 519-12, available in a set of 16 under 519-16
Engines w/ 0.500" OD Valve Guides and 5/16" Valve Stems
