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 fits LS applications with 8mm valves and .500" OD guides.
Available in a set of 12 under 511-12, available in a set of 16 under 511-16
Engines w/ 0.500" OD Valve Guides and 8 mm Valve Stems
