The '96+ SHOs are the 3.4L V8 ATX only combination. The first and second gen SHOs are the Yamaha MTX 3L and ATX 3.2L V6 offerings.
The SHO engines share nothing with our drivetrains. Sure, you could probably
make one fit, but at the cost of custom engine and tranny mounts, custom wiring harness, half shafts, clutch assembly... That's even if the engine bay is large enough for the larger Yamaha engine. You could make a 3 liter Duratec scream a lot louder for a lot less money and effort than you'd go through trying to make the SHO engine fit.
