JRE/BTR .660" Lift Platinum Spring Kit

This kit includes:

Spring Locators
Steel Retainers
Valve Locks

The specs on the springs:

Spring specs are 155 lbs @ 1.780", 380 lbs @ 1.180", 400 lbs @ 1.130, coil bind @ 1.070" This is a drop in spring kit for all 15 degree LS heads including LS1 LS2 LS3 LS4 LS6 L76 L92 L99 LQ4 LQ9 L33 LSA, etc, this kit will also fit LS7 heads with approximately .045" of spring shim, see item SS015 and SS030.