Re: V8 or not to V8
Don't think they make an adapter, nor would you want to bolt a V8 to a stock Ranger transmission even if it was a matter of swapping the bell housing. If it's an M5OD-R1, bell housing is integral - need to figure out what transmission you have and do lots of research and inquire to companies that make adapter plates and see what they have to say. Just about every V8 swap I've seen that I can remember has used a V8 transmission.
1987 Ford Ranger Short Bed 5.0L/T-5 Project
1988 Ford Ranger Long Bed Parts Truck
1993 Ford Tempo 2.3L OHV HSC Auto - D/D Stock.
1999 Honda Accord VTEC Auto
2002 Dodge Caravan - 3.3L Auto