13 This month we showed you what it takes to build a stout 426 cubic inch late-model short-block. Next month we’ll bolt on a pair of CNC ported 6.4 Hemi heads, induction, and MSD ignition system and take it to the dyno. How much power do you think this engine will make? Go to our website or Facebook page and take a guess. We think you’ll be impressed when you see our dyno numbers.