Here is a CD-ROM in PDF Format of a Mid 1950's magazine article on how to build a small two stroke cycle, two cylinder gasoline engine.  It can also be built as a glow engine.  This is a great project for a beginner machinist who is relatively acquainted with his lathe, the engine can be built with lathe and drill press only, but, a milling machine would come in handy, even though it not required. The article includes easy to follow instructions with good clear drawings.  You can print actual size or work from the original magazine format.  While castings could be made, they are not necessary.  The entire engine can easily be machined from solid materials.  Two of the pages of the text are shown in the listing which demonstrate the clarity of this set of instructions.  

You will receive a CD-ROM, it does not "play" because it is NOT a DVD

  or a movie, this is an electronic copy of a construction article on building a miniature gasoline engine)  

All CD-ROM's go media mail to save you money.