Great novice engine as well as fun for the experienced enthusiast. This kit comes as a set of pre-machined  aluminum castings for the machinist. All hardware gaskets, prints, nuts and bolts and bar stock are included to build a running engine. The engine stands 4 1/2 inches high with a flywheel diameter of 2 1/4 inches and consists of 6 castings. Bore is 1/2 inch, stroke is 3/4 inch engine is double acting.

This engine requires assembly which will take about 15-20 minutes all you need is a small screw driver.