well.. actually... im considering all the work of swapping a 5.0 and a t-3550, but i havent decided yet, i might go the 99+GT & t-46 route. itd be a job tho either way. however with the 5.0, motor mounts are in the same position. for the 5 spd, the t-3550 is the tranny of choice, but you will have to do 1 of 2 things, mod the center console for different shifter positon or mod the shifter box so the shifter is in the same position. for the t-3550 is a mustang tranny. you could take the route of using a SC 5 spd tranny, but thats a mazda tranny designed for a 4banger ranger and not a 320 ft/lb torque car. you will also need a new driveshaft, i recommend a dennis reinhardt driveshart, one piece aluminum 480 bucks. it would be a good idea at that time to also get a mark 8 rear end with the trakloc gear rato of your preference.
ok, for the motor, you can get on cheap from a junk yard prolly, or you could buy a performance crate motor, or you could get a reman motor and build it up real nice. you will need the computer from a 5.0 bird and all the wiring and sensors as well. a swap is a prime chance to put a lot of after market parts.. such as cam, rocker rolers, build up the motor with forged parts, slap a a nice 95 cobra intake or a trickflow intake and heads, bigger valves, stiffer springs and such. i suggest getting a haynes manual so you can see in detail all the wiring info and everythign if yo do the swaps..
for the trans, if the car doesnt have abs, you will need to swap in an abs master cylinder to fit in the hydrualic clutch setup that the super coupes have or get the clutch setup from a fox mustang (its a cable clutch) and you will have to do a few little modifications for the cable but a lot cheaper than swapping to ABS and getting master and slave cylinders for the clutch.
i figure when all said and done... 5 - 7 grand.
its a little down the road for me tho, cause i got so much other things to take care of my 90bird... like make it one color.... -greg