Bunch of Noob question from a Dutchman

Hi guys just started this week with pulling out the slant 6 out of my 74 Dart. And now I`m piecing together al the parts I need for the 440 to fit in there.
I allready got headers and Schumacher mounts. Anything else I wille defenitly need ??
And I got a 440 out of a chrysler with casting number 3698830, but are all the 440 engines the same from 65-80 ? Because I need some parts like gaskets and bigger cam etc but how do I now that I`m ordering the correct parts ?? Because there are a lot of options to choose from. I also need another intake and carb.

gr Arnoud