Help me win this argument 400 in a 72.
If you want a quick R&R, go with the 360. If you want to build a killer engine down the road, get the 400.
I remember the 400 back in the 70s; it was considered a boat anchor because it came from the factory in such a de-tuned condition.
However, the 400 block is now a hot ticket for making mucho power.
440 Source used to have a great section on MoPar blocks, but it doesn't seem active now.