Been doing some more reading on it. Apparently it's been around for over 8 years. It was more so a chinese venture that Cumm8ns lent there name to. Early engines had ALOT of early failures which seemed to be predominately programming related. Power ratings for longevity seem to be 8n the 160-180 range with torque in the mid 300 range. There is also a 3.8l version of this engine that is very similiar, but seems to be more robust. It is not US epa compliant from anything I can find, and until now Cummins has said they had no desire to releade it here. It is supposed to have been the 3.9l's replacement engine in South America for the super duty trucks built there. Prices seem to be in the $7-10K range, but these were for non epa approved engines without dpf's. No word on which bolt pattern, but it issupposed to be a round 12 bolt bellhousing pattern.
It could be a good engine, but I see cost being a HUGE hurdle, I don't know about you, but I'm not gonna spend $10K on a 4 cylinder diesel when youcan spend a fraction of that for a LS eng8ne that makes more torque, 3 times the HP, similiar weight, and parts are EVERYWHERE!