Thanks, but I do not need any parts at the moment. i live just south of Indy. The biggest concern with switching to a 383 would be the transmission. They were different from a small block. I am assuming that you have the 727 automatic behind your 360. Everything else except the exhaust should fit. I have the 330 hp 383 in my Challenger and is a good motor for cruising. If you are looking for more performance the crate motor 360 might be a good choice. Of course there is no replacement for displacement. "440" I would definately do what Lear4406 recommended and drive the car to get a feel for any other concerns a 35 year old car has.
Bob