.685" Lift Dual Spring Kit for LS7 engines using limited stock rocker arm setups and Roller Rockers. Includes dual springs, matching titanium retainers, your choice of locators for Stock or bronze guides, locks and seals.
Spring specs are 170 lbs @ 1.800", 380 lbs @ 1.180", 450 lbs @ 1.115, coil bind @ 1.000" This is a drop in spring kit for all 15 degree LS7 heads.
This kit will not fit LS9 engines, please see item SK006 for LS9 heads.