i havent done it before but i can definitely tell you the mounting points are wayyyy different and require mods...its possible but will cost some money
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2000 3.8l v6 mustang...red... CAI,....work in progress....my very FIRST CAR! :)
i've been thinking of doing the same with my 96
this is all internet info but this what i got so far
fuel system (del)
rear end
tranny
computer
alot of folks are saying you'll need a donor car its easyer that way but take the info and make it what you can let me know how it goes for you
Look at the top right of the screen. There should be a search feature. Know it, use it, love it.
This subject has been discussed literally hundreds of times.
Yes, it is possible. You will need basically a whole donor car.
Engine, wiring harness, computer, fuel system, transmission, rear end, suspension and lot of spare cash.
It is not worth it in the slightest unless you are installing a 4v Cobra/Mach 1 engine.
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'01 Silver V6 5-Speed Show:17x8 Anthracite Bullitts w/Kumho 255-45s, spoiler, smoked headlights and fog lights, black LED 3rd brake light, Mach1 grill delete, Mach1 chin spoiler, splash guards, Hurst badge, chrome exhaust tips, carbon fiber bumper inserts, 8" antenna, black hood stripe, 232 badges, Ford Racing license plate frame (in the box: hood scoop, rocker stripes) Go: Divorced dual exhaust w/Original 40's, AM CAI, Hurst shifter, SCT 91+ Tuned
i've been thinking of doing the same with my 96
this is all internet info but this what i got so far
fuel system (del)
rear end
tranny
computer
alot of folks are saying you'll need a donor car its easyer that way but take the info and make it what you can let me know how it goes for you
On a 96 and OLDER it is definitely worth the trouble to swap in a 5.0L drivetrain since there is a dramatic performance gain and the swap is FAR easier than a 97+ V6 to 4.6L V8. The 95-96 cars will pretty much accept the 5.0L with little work. Pretty sure all you need is a new harness/ECU and maybe a few other odds and ends but it will bolt right in.
If I owned a 96 or older, I would not hesitate to do a 5.0L swap. You don't gain much going from a 3.8L Split Port V6 to a 2V 4.6L. If I was gonna take on the nightmare of putting a V8 in my 2002, I would only do it with a 4V 4.6L or maybe a 5.4L if I really need to abuse myself.
2000 Mustang v6 to v8 engine swap 
