HIGH POWER. 150-250HP. Tohatsu offers the best outboard motors, including the 250 hp, 225 hp, 200 hp and 150 hp. View High Power Series. Feel the Extreme. MID-RANGE. 25-140HP. Tohatsu offers an outstanding line up of four stroke outboard motors, including the 140 hp, 115 hp, 90 hp, 75 hp, 60 hp, 50 hp, 40 hp, 30 hp and 25 hp outboard motors. You can google this upgrade. If you have a 325e and you put this block on there you get something like 40hp+. It's a direct swap, the only difference on this head is the cam/spring/ which are significantly more aggressive.