Reference the O-1230 Engine, It may have been contributed to the Bradley Air Museum back then by Walter Soplata. I had visited his collection in the early 1970's and he showed me two large experimental engines stored in or near the KC-97 fuselage. Upon recollection, one could have been the O-1230 and the other the Chrysler engine that was used experimentally on a P-47 - both very large. Sometime after the Bradley tornado, I visited again and he showed me the wreckage of the front cockpit section of the C-124 and fuselage of a T-29 of which he had made a deal for his F7U Cutlass and at least one of these large experimental engines with the museum. I didn't realize the importance of some of his engines as there was always too much to see and didn't take further notes. I know he also had an Allison V-3420 and an X engine which was right out of WWI.. It has always amazed me what one man could accomplish...By the way, the Cutlass part of the deal fell through as is well known...