If you go the this link the first/top photo is a straight shot of the GXH50 profile without tank. Small Engine Warehouse: GXH50QHA - Honda Engine 2 5hp Horizontal 5 8 x 1 1 4 Shaft Muffler no tank
if you lay a piece of paper at the top pt of the sparkplug and put a pencil mark at the bottom and then rotate the paper 90 degrees and lay it across the motor from the edge of the air cleaner to the tip of the muffler, the distance is the same. The motor without tank is 10 in. tall. The motor with the gearbox attached comes out to 9 in. One other note Small Engine Warehouse is a great source for the Honda motor.