PART# LS500
Set of 16, Viton, Small O.D. Valve Seals for 8mm & 5/16” stem valves with .500” Guide, GM LS1 & Others. 
Part Type: Valve Seals
Application: GM LS1 for Dual Springs
Valve Seal Type: Small O.D. (.600”)
Valve Stem Diameter: 5/16" & 8mm 
Valve Seal Material: Metal-Clad Viton
Valve Guide Diameter: .500"