I have the 400 block it came with sitting in there for fit up. It came with a 440 cast crank cut for a B motor. I may use that in a stroker 383. My plan is to put a 383 I keep around to keep things moving in the K. When it is ready the Dart 383 will end up in the K. The stroker 383 or a bigger stroker (I am waiting to hear back from someone on their old 4.150 crank and pistons for a 496/400) will go in the Dart.Mopower71 said