Proflow offers Platiinum Max Series shaft-mount rocker arm systems fulfill the needs of successful racers and performance engine builders at every level. The Platinium Max rocker arms are made quality2024 alloy extrusions. These systems include CNC-machined billet steel pedestals, and ground, steel alloy rocker shaft. Platinium Max Series shaft-mount rocker complete kits include all the components and hardware required for a professional installation. Order the system recommended for your specific vehicle and engine size. Platinium Max Series aluminum shaft rocker arms for a variety of engine applications. These 2024 custom aluminum formulas are designed for the Serious racer and have had extensive testing and will meet all newssasary performance requirements.