It has a ROLLS ROYCE TSIO-360! Even has RR on the rocker covers - How cool is that?
I just noticed that it has the 225HP engines installed at the factory instead of the usual 210HP engines. So essentially its a Turbo Skymaster with the engines from a Pressurized Skymaster - 30HP more than any other Turbo model!
No wonder Reims used it as the military demo model!