This ZZ4 350 small-block aluminum head crate engine from GM Performance Parts produces 355 hp. The evolution of the ZZ series, this engine powers thousands of street rods, drag racers, and show cars.

Gas-powered RC engines are typically two-stroke single-cylinder engines that run on a fuel made up of nitromethane mixed with methanol and oil. They are relatively simple, powerful, and inexpensive.

Methanol is a popular fuel for small engines used in radio-controlled models, but comes at a higher price than gasoline. It’s also harder to source and can be a mite corrosive, too. Gasoline comes ...