COMP Cams - 948-16
Valve Spring - Race Extreme - Triple Spring - 687 lb/in Spring Rate - 1.130 in Coil Bind - 1.660 in OD - Set of 16
Engine Valve Spring Kit
Triple Valve Springs from COMP Cams deliver maximum strength, durability and valve train stability. Engineered from Super Clean wire and subjected to extensive quality control measures, the triple spring design creates a stronger valve spring that can easily handle the increased lift and extreme demands found in aggressive applications. COMP Cams Triple Valve Springs exceed the expectations of today's engine builders and racers.
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
Coil Bind Height: 1.13
Compatible .570" Guide Diameter Spring Seats: 4786-16
Compatible Retainer: 739-16
Compatible Shims: 4756
Compatible Spring Cup (O.D. Locator): 4708-16
Damper: No
Inner Spring Inside Diameter: 0.863/0.627
Number of Springs: 3
Outer Spring Inside Diameter: 1.196
Outer Spring Outside Diameter: 1.66
Seat Height: 2.1
Seat Pressure: 332
Spring Rate: 687
Valve Spring Series: Race Extreme
Amazon ASIN: B00062Y9XQ