COMP Cams - 511-16
Valve Stem Seal - Positive Stop - 8 mm Valve Stem - 0.494 in Guide - Steel Jacket / Viton - GM LS-Series - Set of 16
Providing the best sealing properties and spring clearance, viton valve seals are an excellent choice in performance applications. The 511 seals have a .600" OD and fit LS applications with 8mm valves and .500" OD guides.
Seal Outer Diameter: 0.6
Valve Guide Outer Diameter: 0.5
Valve Seal Type: Steel Jacketed Viton
Valve Stem Outer Diameter: 8
Amazon ASIN: B0014F1HSE
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. 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 California Certified Vehicles Manufactured Before 1965?: 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. Exemption Reason: No impact on pollution output of vehicle.
C.A.R.B. E.O. Number: N/A
