When you're building an LS and want rocker arms that actually match the rest of your performance parts, look no further. These Brian Tooley Racing LS3 Rocker Arms come pre-loaded with TK002 V2 Trunnions, so you're getting killer valvetrain stability without having to mess with presses or bearing swaps. BTR didn't just slap these together. The arms themselves are 46% stronger than OEM, with an extended tip for better valve contact and higher lift tolerance. Inside, you're getting the latest V2 trunnions, built from 52100 bearing steel and treated to handle extreme RPM abuse. The self-oiling axle feeds oil directly where it's needed most—right at the trunnion—for smooth, stable rotation. This kit is made to fit LS3 and other GM rectangle port heads—including L99, L92, L96, LSA, L94, L76, L77, and LY6. Whether you're camming your daily or dialing in your next race car, these BTR rockers are ready to take whatever you throw at them.