Scratch-Built One-Off Wonders

Iowa man shows his skills by making full-sized scratch-built gasoline engines

singlecylinder engines
After building a trio of single-cylinder engines, Mark tackled this much more challenging 4-cylinder engine. Mark says he’s learned patience from his hobby. “You take three steps forward and two steps back,” he says. “It’s amazing how much time you can put into it. You have to have some reward, and that comes when it works right.”