looking for 4cylinder Isuzu or mitsubishi diesel engine for 1990 GMC straight truck?

Question

I am looking for an Isuzu qr Mitsubishi 201cid 4 cylinder longblock diesel engine for a 1990 GMC flatbed straight truck.The original engine was an Isuzu,but was swapped with the 201 cubic inch Mitsubishi long block 4 cylinder diesel,any info or leads on where I could find one would be appreciated since these are extremely difficult to find in this area.The engine code for the Isuzu is4BD1,the engine code for the Mitsubishi is 4D31,either engine will work for us.

Answer 1

http://car-part.com/

Answer 2

Look for the old Chevy Luv Mikado's with the isuzu deisel in them. Good luck.