162116 Ultra Pro Magnum Shaft Mount Rocker Arm for Big Block Chrysler

They are heat treated for maximum strength and stiffness to stand up to the demands of high performance applications. These shaft mount rockers contain proprietary bushing inserts and a unique oiling system that lubricates all the critical parts for a long lasting service life. Designed to handle roller lobes and higher spring rates, these shaft mount ultra pro magnum rocker arms include a special adjuster that allows the use of conventional ball end pushrods. Features For big block chrysler applications Made from sae 8620 chrome moly steel and heat treated for maximum stiffness Contains all proprietary bushing inserts Unique oiling system lubricates all critical parts for longevity Includes shaft, spacers and special adjuster which allow the use of conventional ball end pushrods.