If you're interested in the mechanics of how an engine works, you might want to check out one of these mini engine kits that run on real fuel.

One way to learn how to rebuild a car engine is with an engine kit like this functional Teching V8 engine kit.

Walmart is selling a $100 mini V8 engine you can build yourself for just $60 One shopper called the Playz combustion engine kit “the perfect gift for anyone interested in engineering.” ...

Based on a flathead or an overhead valve design, the Cison V8 engine kit can make up to 4.8 horsepower out of 44cc of displacement.

The Toyan V8 is one of many mini engines available from online retailers. But why would you ever need one? And how much power does it make, anyway?

Amazon is selling a ‘quality’ mini V8 engine kit for 30% off, and shoppers say it’s ‘educational and fun’ “Outstanding model for young and old.” ...