noob need some basics
Getting a big block in an A body isn't hard. Doing it correctly can be a challenge.
I used a set of Schumachers conversion motor mounts and headers.
http://www.engine-swaps.com/
The transmission cross member can be re-used with no modifications. Even bolts in to the stock locations.
You will probably have to change the driveshaft or just shorten the original.
Although if you are upgrading the rear end, recomended, you may be better off upgrading the driveshaft as well.
I agree, you have to plan this sort of project out. I am building mine as a street car (mostly). I used the biggest radiator I could fit in between the frame rails. The biggest fan I could fit in my fan shroud (19" 7 blade on a HD thermal clutch).
I used a '73 440 that I rebuilt, cast crank and LY rods. Nothing special, did it on a budget. Same goes for the 727, rebuilt it in my barn, new clutches and steels with a shift kit and a few mods. Nothing wild.
My goal is to build a car that is fun to drive and looks like a factory big block car. Sure there are a few thing that stand out but... its a driver, it isn't perfect.
http://www.youtube.com/watch?v=yCCYTEzRrpo