Stock Horsepower rating-bluebird bus
First off, I'm a newbie, however I've owned my bus for almost three years. I still don't know for sure what horsepower rating is. There is no info plate on the timing cover. For whatever reason the rivets are there, but the plate isn't.
I know the gen 1 pickups are rated at 160 hp/400ft.lbs torque, however this is an industrial application, and my parts book for the bus gives three options for engines, 1 is 160 hp, and the other 2 are 180 hp. The bus is a 90' bluebird tc2000. The only thing I have to work with is an engine serial number found on the body information plate- 44402847. Anyone know definetively what the actual ratings are?