383 or 440?

Is the 440 a cast crank externally balanced one? Make sure you have the correctly balanced converter if it is. My friend put a 7.5/1 compression 413 in his Dart, with stock 906 heads, .474 lift MP cam, M1 intake and big headers. It ran mid 12's the first trip to the track. I would cam the 440, and go with that, assuming it really is healthy. I have a 383 in my Barracuda, but I know how 440's pull.