As if I don't have enough projects going at once as it is, I just came up with another one a few days ago. I have a few of these big, heavy, cast iron wisconsins that have been sitting around for awhile, but I couldn't think of anything to use them for. In the picture with both engines, the one on the left is a wisconsin model ACN, 6hp @ 3600 rpm. According to some research I did, they only made the acn in 1955. The one on the right with the sideways spark plug is a model AK. Made from 1939-1955. Producing an un-impressive 4.1hp @ 2400 rpm. They weigh about 87 lbs each, making them a dumb choice for a mini bike when a briggs flat head 5 horse weighs around 30 lbs. I figured I could weld up a mini bike frame pretty quick out of some junk i've got lying around, use up one of these wisconsins, and just call it a rat rod. I won't have to paint it or worry about performance that much. Just tack something together for the heck of it. The two orange engines are old two stroke jacobsen reel mower engines. I thought of using one of them, but their small size wouldn't make the project much of a head turner. I've got some rusty angle iron, some old bicycle parts, and a whole bunch of other junk thats not really good for anything else. Might as well make something out of that pile of junk.