Take your valvetrain performance to the next level with Speedmaster Aluminum Shaft Mount Rocker Arms—a blend of precision engineering, durability, and horsepower gains. Crafted from extruded aircraft-grade aluminum and supported by steel shafts with rigid pedestals, these rockers unlock consistent ratio accuracy and smooth operation under demanding conditions.

Designed for high-RPM and high-lift applications, each rocker arm features large needle bearings and roller tips that minimize friction and reduce wear on valve stem tips, extending valvetrain life and enhancing efficiency. Precision machining ensures each unit delivers dependable performance with exacting tolerances across the entire set.

Available for a wide variety of engine families—including Chevy small and big blocks, LS platforms, Mopar, Ford FE, and Oldsmobile—these arms cater to street builds, race cars, and everything in between. Options range in gear ratios such as 1.5, 1.6, 1.7, and 1.76, with choices of splitter ratios and finishes to meet your build goals.

If you’ve been shopping for reliable shaft rocker arms that deliver both strength and precision, these speedmaster shaft rockers fit the bill. And for those seeking the smoothest motion and longest life under aggressive cam setups, the speedmaster roller rockers offer the ideal balance of performance and durability.

Upgrade your setup with Speedmaster Aluminum Shaft Mount Rocker Arms—where reduced friction, extended component life, and engine response meet smart design.