comp cams ultra pro magnum rocker arm shaft pair 1621 for chrysler 383-440 b/rb shaft kit

For maximum performance and long life, we recommend COMP Cams rocker arm shafts. Made from hardened chrome or chromoly steel, they're heat-treated to obtain maximum strength and stiffness. A unique oil system lubricates all critical parts for long lasting service. These rocker arm shafts are designed to be used with various types of COMP Cams rocker arms, depending on your automotive needs.