So, you wanna go Magnum? Here's the hardware you'll need. Besides the heads, you'll need a set of Magnum-specific rocker arms, pushrods with oiling provisions, Magnum head bolts, Magnum valve covers, and a Magnum intake. Don't forget fresh head gaskets and Magnum-specific intake and valve-cover gaskets. Fortunately, most of the production-based Magnum components, including the heads, bolts, and rockers, are bargain priced.