Trouble mating 727 to a 440 - HELP ;)

Don't look all the way in to me either. The flexplate mounting lugs need to go in at least 1/2". Tacfire if you look on the drivers side right above eh pan rail (pan mounting surface) there is a place machined flat and the identifying numbers stamped on there. sometimes it's grease covered so you have to clean it off before you can read the numbers but get those numbers and post them and I can tell you what it came out of and the year of it.