PRW 3535031 Shaft Rocker System 2024 Billet Alum for Chevy SB 262-400 AFR Heads

Pro Series Billet Aluminum Shaft Rocker Arm System The Pro Series aluminum rocker arms are made from 2024 – T351aluminum alloy extrusions. Each rocker body is relieved for extra valve spring clearance and anodized for added strength. CNC machined billet steel pedestals, ground steel alloy rocker shafts, PRW Power 4135 alloy steel Fasteners, Studs & Bolts, and needle roller bearings from the finest manufacturers in the world comprise the foundation of these rocker arm systems. These complete kits include all the components and hardware required for professional installation. Rated 750 lbs. open spring pressure Internal oiling system for long-lasting performance Silicon Bronze Bushings