NOTE: These heads are designed to accommodate stock Big Block Mopar Wedge rocker arm assemblies and aftermarket stock-like setups with a minimum of .150” intake offset. Ductile iron adjustable arms can be used but will require special clearancing of the rocker arm body in order to clear the valve spring retainers. Also, non-stock spec, aftermarket rocker arms may require special modifications. Please call Hughes Engines at (309) 745-9558 for compatible rocker arm setups.
