I am considering the purchase of an IH 660 diesel. Supposedly it has a recently overhauled shortblock from a 656 diesel. Is this possible? It may have a stuck valve, which is not a problem to me. I have heard that they are fairly rare, does anyone know of production numbers? How much horsepower do these have? Any ball park figures on what it is worth? Other things I would like to know about are reliability, availability of parts, etc. Anything I should watch out for?
All opinions welcome/appreciated.