I have an o470-13A originally from a Beech t-34 Mentor. This is an aerobatic engine as it was from a military trainer aircraft. Is complete less prop and oil sump pump. I have no logs so am selling as a core. I got it for a stinson 108 experimental but have changed directions. Can text pics. 870-6 five 6 - 43 eight nine. Located north arkansas. This is like the engine Smokey Young ran in his Skybolt afew yrs back. Thanks for lookin. Consider tradin for o200 or running o290 or o320 lyc.