1977 440 out of a van.

i'm about to buy a 1977 440 w/727 trans. its from a van and has 47k on it. i've been reading that there are subtle differences on these engines, mainly the heads, intake, and water pump can be different. also i noticed on the rear of the engine...bolted to the trans bolts there is a metal plate with an electronic ignition setup on it.

my questions are, aside from possibly having to switch the heads and intake, what all else do i need to do to drop this in my 69 dart? Do i need a different K frame? what are good motor mounts?

This is my first time swapping a mopar and I'm doing it on my own. All my friends are chevy and ford guys. If anyone could help me along the way or just highlight some threads here i could read up on. Thanks

-OriginalDart