One of the simplest and least expensive engine kits that comes with some invaluable science lessons is the $29.99 all-metal desktop Stirling engine kit. A Stirling engine uses a gas or fluid that ...

Building a mini engine is similar to assembling a full-size one. The big difference is that you need far fewer specialist tools and equipment. You will need a few screwdrivers of varying sizes ...

The Xpower-V8 kit allows anyone to build a working 4-stroke, 8-cylinder methanol engine for educational purposes or to power RC cars, trucks, and more.