67 Engine to 72 Trans Question

Guess my engine block is no good, as the cam sprocket was walking against the block surface and I was recommended to fix up a good block rather than possibly have failure down the road rebuilding that.

Okay, so my boyfriend has a 67 Dart with a 225. I have read that this was the last year for the smaller crankshaft pilot hole along with spline differences. Am I still able to use his block with my 904 trans if I swap my 72 crank into the block? Should match up then without having to buy adapters and such. Both are forged crank engines so I'm hoping to avoid trying to source another block. Thank you!