426 Hemi for me. My 71 Duster was the best hot rod I've ever owned. 528 Crate engine with a single holley, kiesler 5 speed, dana rear. And this Barracuda is a 528 Hemi, Fuel injected, 3 speed auto, 8 3/4............That being said I have a 6.1 out of a jeep that is going in mt 1964 Dodge crew cab truck. Should be fun!