Mopar Performance P4120974 - Mopar Performance Rocker Arm Kits

Heavy-duty Mopar Performance Rocker Arms feature thicker cross-sectional material in pushrod socket area for added durability, similar to the O.E. 440 Six Pack-style. Package includes 16 rocker arms, rocker shaft retainers and hold-down bolts. Rocker shafts not included. Individual service rocker arms are also available. For the 383/400 "B" and 413/440 "RB" engines, the left rocker socket is approximately 1/16" to the right, and the right rocker socket is approximately 1/16" to the left. Use malleable iron rockers for ultimate durability.