Alright guys, sorry to necro this post, but I'm looking at doing the same thing with my 1975 Duster, going from a slant and 904 to a 440 & 727. Does Trans-Dapt have a kit for 73-76 A-bodies, or do I need to get the full K-member kit? As far as I know the 727 is just a beefed-up 904 so it should bolt right in no problem but I have no idea how the engine will bolt up.