Ok, I was looking around in American Muscle's site and came across some new parts for our stangs which included a new Ford Racing 5.0L Boss Modular iron block. Which is said built for 96-04 gt. To install, sense its designed to reuse your 4.6L parts, just remove everything from the 4.6L block a place on the new 5.0L Boss block, but have to supply larger pistons, mill the deck, and finish the bore. I am thinking of putting this in my 97 gt, it cost $1200(free shipping of course!!). Anyone thoughts on this subject is appreciated.