[bk347]

Ashok
Am building an FFR coupe right now. This my 3rd FFR and if I could say which part of the build is the most costly, it's when we (myself included) try to "build" a motor for less then a professionally built motor. I built a stroked 347 for my roadster and after everything was said and done, it went like cvrazy, of course, but cost me more then advertised 347s from builders (with warranties). I recently spoke with Southern Automotive and they said that they build a 347. If I were you I'd check them out. You mentioned "most importantly resale value" ; a motor from a recognized engine builder will also help you there.
The 302 based motors sit a little lower in the coupe then the 351 based motors (different deck heights) and you will need the lower height for hood to air cleaner clearance. There are some 351 coupes but they all had to find the right set-up for the air cleaner to fit under the hood. I'm using a stack injection set up on mine and hood clearance is not an issue.
As far as the tranny goes. If you plan on a 400hp small block then you will pushing the limits of the T-5. You can either leave the T5 in it and drive it until it breaks (depending on you usage of the car; auto crossing, cruising, drag racing) and then replace it with the heavier duty Tremmec or do it up front.
I'd be glad to help you out with any other info about the coupes if you'd like to e-mail me. Good luck with your decisions. Bob