This one is a Y-69 model,I think originally it powered a IHC hay baler--its mounted in a heavy cradle with a huge old brass radiator that has "CONTINENTAL" stamped into the upper tank..
It's only rated at 19.9 HP,but it has a long stroke and a heavy flywheel--takes awhile to get it up to RPM,but once you do it almost never bogs down or stalls..this one has a cylinder head that bolts on..
I took the valve lifter side covers off it once,it was still clean as new in there,with factory blue paint..it must have a billion hours on it,last use it had was running a cranberry bog pump,they ran it 24/7 for years,only stopping once every few months to change the oil!..
It did smoke some last time I had it going,but its old enough to smoke..the company that had it dumped it at the junkyard--I felt bad ,didn't want to see it crushed,so I took it home when they closed the yard up ..never did put it to use on anything,it'd be a neat rat rod or tractor engine..