BTR: LS DUAL SPRING KIT - .685" LIFT - SK701 - BRONZE VALVE GUIDE .060 LOCATOR 02 Throughout the '80s

Throughout the '80s

Increased Air Flow = +23%

- Fits 1968-1972 GM A-body

Transforms the Rear of your car

BTR: LS DUAL SPRING KIT - .685" LIFT - SK701 - BRONZE VALVE GUIDE .060 LOCATOR 02 Throughout the '80sBTR LS DUAL SPRING KIT . 685" LIFT SK701 When you decide to take a walk on the wild side and exceed the . 660 limit of our venerable Platinum Spring Kit, the next step is our . 685 Spring Kit. A higher spring rate and titanium retainers will ensure valvetrain stability with radical camshafts. This kit does not fit LS9 engines. The kit includes the following SP010 16 SR001 16 SL565060 16 VS LS KIT VL78MM 32 Spring specs are as follows: 170 lbs @ 1.