BTR LT1/L86 CONICAL SPRING KIT – .650″ LIFT – SK013
We were first to market with a conical valve spring kit for Gen V LT1/86s. Big whoop, right? WRONG. Weight is the enemy of a proper functioning valvetrain. If your cam isn’t too radical, a dual spring kit isn’t required. These springs will vastly improve valvetrain stability at high RPM while still supporting up to .650″ lift. Made right here in the good ole US of A, this kit includes springs, locators, and retainers. LT4 engines require SK014.