Everything you need to prepare your heads for high-lift cam use and high RPM applications. Kits include Single Hi-Performance Valve Springs, Chromoly Retainers and Hardened Valve Locks. Same Single Springs as P/N: 4040.
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and reproductive harm. For more information, go to www.P65Warnings.ca.gov. All parts legal for use on pre-pollution controlled vehicles only.