[rellick]

Clint we are only comparing using Jons coach because he is on the line for weight, the 8v92 is a larger engine but the 8.3 would still work and still have enough power for the weight it is. I think he is wanting better fuel economy.
If it was a larger heavier coach I would probably go with a series 60 or a larger cummins engine. They will still be easier on fuel and parts are more readily available at a reasonable price. Not to mention the resale value after the upgrade is done, look at the price of a Newell the same year with the 8v92 vs a series 60 there is a substantial difference. I think they had the option around 1995?
It takes roughly 100hrs to do the conversion so if you do the math it pencils out roughly the same. Dont get me wrong the 2-strokes were a great engine for the time and many people still like them, but times change and engines are getting more and more streamlined and efficient. So in my opinion if a coach needs a new engine, for most it would make more sense to go with an inline and opt for the conversion, brand not important just that the 8.3 is the subject in this post.