This looks like it could be a cool swap if it is cheep enough!! http://www.dieselarmy.com/news/3-0l-diesel-engine-option-for-your-diesel-engine-conversion/
Thanks for sharing. I've been keeping an eye out for a 4bt but was never really convinced that was what I wanted to do. This seems like a much better idea.
This is going on the short list next to the Super Six Motorsports 4.0.
Edit: I cannot find a way to purchase or see a price. Gonna keep looking.:driving: