Jim Wolf Technology Spring and Shim kit is for use with JWT race and street cams in VQ35 engines revving over 7000rpm.? VQ35 Spring pressure measures 43lb on seat and 136lb at 12.5MM lift. The included shims replace the stock base shims to obtain the correct 36mm installed height.
For VQ35DE intake and exhaust, includes 24 qty springs
RETAINERS NOT INCLUDED