10 Superlock Steel Retainer Set Of 16 For 1.500"-1.550" OD Valve Spring

Attributes GTIN: 00036584200413 Brand Name: COMP Cams Compatible Lock: 638-16 Diameter 1: 1.485 Diameter 2: 1.125 Diameter 3: 0.745 Lock Angle: 10 Retainer Material: 4140 Chromemoly Steel Valve Spring Diameter: 1.500-1.550 Valve Stem Size: All Amazon ASIN: B000CEM59S 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. N