I know the engine is too tall with the stock oil pan to fit under the hood in 80's/early 90's Rangers, there is one running around Ottawa with a custom front grill and hood riser for clearance. I have not been able to witness the job up close, but it is evident from the outside some work had to be done and I met a mechanic who worked on it and verified it was a 617 motor.
You might find adapters for the engine and trans at acme in CA, they offer a lot of different ones.