The TO4B comes in several configurations, and may or may not work as a bolt-on. You would need more specific information about the compressor and turbine trims and the housings. There are various sizes available, and need to be matched to the engine requirements. My gut feeling is no, the diesel unit will not work well, as those motors don't operate under the same circumstances as a gas engine. A diesel motor is chosen for a specific job based on it's torque output, and they don't turn nearly as fast as a gas engine to make power. So the air needs of each type are vastly different, even if the displacement, for instance, is the same.
What you might want to do is to visit this site page and read what they have to say about turbo choices. There is lots of info there, as well as other links.
http://www.turboneticsinc.com/guidelines.html I printed almost all of their turbo maps last year when looking for information on a turbo choice for my 292. Since I still don't have the engine together, there is no reason for me to forge ahead and spend money yet on the periphery. If you need some help on the math that is needed to develop your choice, give a holler and an email, and I'll give you the formulas that I use.
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David
newbie #4153