1 PTFE Valve Seal For .500" Guide Size 5/16" Valve Stem

Vehicle Specific Engines w/ 0.500" OD Valve Guides and 5/16" Valve Stems Attributes: Brand Name: COMP Cams GTIN: 00036584091301 Amazon ASIN: B002EE2ANK C.A.R.B. E.O. Number: N/A C.A.R.B. Exempt for California Certified Vehicles Manufactured Before 1965?: Yes, but must meet tailpipe emission standards for year of vehicle. C.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967?: Yes, but must meet tailpipe emission standards for year of vehicle. C.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967?: Yes, but must meet tailpipe emission standards for year of vehicle. C.A.R.B. Exempt for On-Road Vehicles?: Yes C.A.R.B. Exempt for Racing and Off-Road Only Vehicles?: Yes, but must be a race/competition only vehicle. C.A.R.B. Exemption Reason: No impact on pollution output of vehicle. Seal Outer Diameter: 0.6 Valve Guide Outer Diameter: 0.5 Valve Seal Type: Positive Stop PTFE Valve Stem Outer Diameter: 5/16 Extended Info