I'm sure .I'm not so sure about that. I looked at a breadtruck with a 4B.
I agree with Scott, to costly to try to properly upgrade. There are many changes, even piston top rings are different. I have seen a US Post Office Jeep delivery van with a 4B. I bet it was a dog LOL.I'm sure .
None turbo engine are around 75 hp gen engine or off road equipment .They will not have a EPA tag .Plus the engine has a lot of different parts and but the time you changed all the parts you would have more than what's it's worth.