Newbie 440 question

Jimmyjeep, the narrow A bodies defiantly make putting in a big block tight but it can be done. A body Joe has done it with fender well headers. There is also some pictures on BBD www.bigblockdart.com with a 440 in a 65 Cuda using max wedge manifolds. Schmucker does make engine mounts for the swap http://www.engine-swaps.com.
Good luck and if you go ahead take lots of pics!