Rebuilding a 74 Duster - Kinda...

If money and time were not an issue I'd get my hand on a 6.4L Hemi (backed with 6 speed or auto you pick) or a 572 Hemi (auto only because I'd do something stupid with a stick). But for a more realistic view would be the a late 80s early 90s 360 LA roller block (pre magnum) stroke that out to 408 using all forged parts with a set on aluminum heads like Indy or Brodix (think that's how it's spelled) with a fuel injection unit on it backed by an auto overdrive tranny (you can use the Mopar tranny but it will require tunnel work, instead look at using a 2004r/200r4, it's the same tranny, because it's smaller then a 727 and should require no tunnel work), also a full exhaust from TTi using their step headers for max flow without cutting the fender wells. Id also be picking an 8 3/4 or dana 60 with 3.54 gears and 4 wheel disc brakes.