I have a 440 in my 71 Duster, I have a 68 A body BB K member from the factory. The driver's side is way forward as you can see and I have an 8 quart oil pan and the back of the K member is more rounded so the engine pan clears. You gotta have a special block with the 2 bolt holes in the front. As shown in the picture i will also post. The engine doesnt sit squarely in the bay, it sits about an inch and a half on the passenger side. the tranny mount bolts right up. The driveline is about an inch or so shorter on the duster than a dart.