BTR LS3 Shaft Rocker Kit with BTR Rocker Arms
BTR Shaft Rocker Kit
The Brian Tooley Racing (BTR) Shaft Rocker Kit represents the next evolution in LS rocker arm and trunnion technology. Designed for performance-minded engine builders, this system addresses the common issue of valve train deflection found with stock rocker arm mounting in Chevrolet Gen III–IV cylinder heads, delivering improved performance, precision, and long-term durability.
Featuring technology typically found only in high-end shaft rocker systems, the BTR kit includes a billet steel stand equipped with four shafts per cylinder head, precision fasteners, and genuine 52100 bearing steel shafts. Each pair of rocker arms is secured with five fasteners per assembly — a significant improvement over the traditional single-bolt design. Extensive development testing confirmed steel stands provide superior stability and performance compared to aluminum alternatives.
The kit comes as a complete assembly with new BTR rocker arms, each featuring upgraded trunnion bearings pre-installed. The BTR Shaft Rocker Kit ensures unmatched valvetrain stability under extreme loads, making it the ultimate upgrade for high-performance LS engines.
