| | These Cast Iron/Ductile Mechanical Rocker Arm packages include 16 rocker arms, 8 separator springs (includes Max Wedge), adjusting screws and lock nuts. They feature mechanical lash adjustment with lock-nut and high-strength cast iron/ductile iron rocker arms. Required with Mechanical Camshafts. Rocker shafts not included. Individually sold service rockers are also available.
Service Cast-Iron Ductile Rocker - 1.6 ratio, right
Big Block | 
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