Brian Tooley Racing BTR Dual Spring Kit .660' LS1 LS2 LS3 LQ4 Steel Retainers Fits LS1 LS2 LS3 LS4 LS6 L76 L92 L99 LQ4 LQ9 L33 LSA
- Brian Tooley Racing BTR Dual Spring Kit .660" Steel Retainers.
- This very popular Spring Kit is highly recommended when upgrading to a aftermarket Camshaft.
- .660" Lift dual spring kit for LS engines using stock rocker arms..
- Included dual polished springs, matching Steel Retainers, locators for stock guides, locks and seals..
- 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..