GAS ENGINE GUIDE: 20CC AND UNDER

Photos by Fredy Perojo Small-block powerhouses Lately, there has been a noticeable shift to smaller displacement single-cylinder gasoline engines and today, there are many of these little gas-burning powerhouses on the market. Years ago, when you talked about gas engines, the smaller end was owned by the 25cc engines and the average size was roughly between 40cc and 60cc with a few exceptions. Gasoline engines have also grown to monstrous sizes in the 150 and...