Pro Shaft Rocker Kit SBF TFS High Port 1.60/1.60

The Pro Shaft Rocker Kit SBF TFS High Port 1.60/1.60 is a precision-engineered valve train component designed for serious small-block Ford builders seeking maximum performance and reliability. This rocker arm assembly from JESEL is engineered for high-revving applications where stock rockers fail under sustained load, offering critical support for engines pushing beyond 7,000 RPM. Whether you're building a street performance engine, track-focused power plant, or competition-ready small-block, this kit addresses the metallurgical and geometric limitations of factory valve actuation.

JESEL's pro-shaft design uses a common hardened shaft running through individual rocker arms, eliminating the deflection and binding issues inherent in shaft-on-tube or pedestal systems. The 1.60/1.60 ratio designates both intake and exhaust rocker arms at 1.60:1 mechanical advantage, optimizing valve lift and duration for TFS (Total Flow Systems) high-port cylinder heads while maintaining stable valve events across the RPM range. High-strength materials and precision manufacturing ensure minimal wear, consistent valve clearance, and superior durability compared to stamped-steel alternatives. The assembly weighs 15.71 lbs and measures 11 x 5 x 21 inches, integrating seamlessly into tight engine compartments while delivering the stiffness required for stable valve actuation under high load conditions.

This kit is essential for builders combining TFS high-port heads with performance camshafts and elevated boost or nitrous levels. The 1.60/1.60 ratio suits both street and strip applications where stock or mild-performance rockers create excessive rocker arm deflection and unstable valve seating. Installation requires proper pushrod length selection and correct preload adjustment to avoid lash-related valve float and audible noise. Compatibility is confirmed for small-block Ford engines running TFS high-port cylinder heads; verify cam profile and valve lift specifications with your engine builder to ensure optimal performance and component longevity.