Manley 03263-50 Manley Valve Spring Shims Rocker Arm Studs Constructed from stamped steel or

Constructed from stamped steel or billet aluminum with a high-durometer 95A polyurethane insert that resists oil

Part 72578 is configured for its specific application with attention to fitment requirements

Installation is outlined in the included instruction manual and can typically be completed in 2-3 hours with basic hand tools

and re-torque to factory specifications

Manley 03263-50 Manley Valve Spring Shims Rocker Arm Studs Constructed from stamped steel orThe Manley 03263 50 Manley Valve Spring Shims provide the required spring pressure for aggressive cam profiles without coil bind or surge at high RPM. Manley Professional valve springs are wound from proprietary wire stock and heat set to prevent pressure loss over time. Part 33282 is configured for its specific application with attention to fitment requirements. Each spring is tested for installed height pressure, open pressure, and coil bind