I began machining this engine when I was just 16 years of age when I was a student at my technical high school. While most students were building hammers and chessboards, I was in search of something more. The design and prints for this unique pushrod hobby engine were discovered out of an old machining textbook. Over the course of the two years before graduation, I managed to to get the majority of it machined and built from scratch. The only things that are missing for it to start up and run are a carburetor, exhaust, and the spark/timing system.
I decided to use a wide range of materials in order to practice and demonstrate my skills to the instructors. Steel was the usual choice but a mixture of stainless, cast iron and bronze were often used. All friction prone parts such as the rockers and pushrods were heat treated and oil quenched for increased hardness.