COMP Cams Valve Seals 3/8in PTFE W/.500in 512-12

COMP Cams Valve Seals 512-12 Set of 12 PTFE Valve Seals for .500" Guide Size, 3/8" Valve Stem 512-12 - Valve Seals, 3/8" PTFE W/.500" Guide COMP Cams Valve Seals 3/8in PTFE W/.500in