Getting ready to swap a 5.7 into my 73 Dart Swinger

Update car is rolling again and I'm moving past the engine bay body work and installed and torqued all suspension in. Grom the fire wall back the bottom of the car needs to be fi ished being cleaned sealed and under coated. Somewhere in the middle of all the its goi mg to see a frame table get checked and im going to weld in sone frame connectors. Oil pan and pick up from milodon has been ordered i payed about 300 for both the real pain 8n the *** was getting the threads out for the block off plate. I used an extractor bit and vice grip its regular threaded and it is in there good and tight. Goodluck to anyone who does not just weld a nut on it. It will crack so be careful mine cracked a little i was worried for a moment. I gound a donor car for my rear end which has a dent but i did get board and hammered alot of it out and it looks much better now.almost makes me sad to want to cut a big piece out of a 72 body thats in decent shape. Let me know if thats is sacreligious..