COMP Cams - 978-16
Valve Spring - Dual Spring / Damper - 403 lb/in Spring Rate - 1.195 in Coil Bind - 1.460 in OD - Set of 16
Coil Bind Height: 1.195
Compatible .570" Guide Diameter Spring Seats: 4770-16
Compatible Retainer: 740-16
Compatible Shims: 4755
Compatible Spring Cup (O.D. Locator): 4704-16
Damper: Yes
Inner Spring Inside Diameter: 0.697
Number of Springs: 2
Outer Spring Inside Diameter: 1.06
Outer Spring Outside Diameter: 1.46
Seat Height: 1.85
Seat Pressure: 127
Spring Rate: 403
Amazon ASIN: B00062YHE2
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