Chris W. Prior to seeing the pictures of this engine, the largest engine I ever saw was a Hamilton two-cycle, double acting ten cylinder diesel. Bore is 24" by 36" stroke. 875 full load brake hp per cylinder at 167 rpm. This thing was an old timer. When I worked in AK there were a couple of old Fairbanks apart at an abandoned power plant. One had the heads off and I stood inside the cylinder. I wish I would have had my camera along. Me standing inside an engine would have made a neat pic.