The space allowed for engine placement is very small. About 7 inches width by 4.25 high at the point where the engine should be. You lose about 2 inches when the cowl goes over the nose of the plane. So its a narrow space. Over the 7 inches and the engine heads will stick out the sides of the cowl. Im setting my engine back close to the firewall thus I will need to make a special adapter for the shaft to bring it past the nose as I did with my 182 when I used similar engine. I dont forsee any problems.