As this DIY hero shows, you can even make it work with the factory 4x4.

When the 6.5 HP (212 cc) Harbor Freight Predator engine in his kid’s go-kart gave up the ghost after some particularly hard driving, [HowToLou] figured it would be a good time to poke around inside ...

Unlike most of Harbor Freight's other brands, Predator's tools are a significant investment. Most retail for hundreds of dollars, and so are a far cry from the cheap DIY tools that most buyers will ...

Engine swaps make the world a better place -- there’s no question about that. Have an old Mazda Miata and want to go fast? Easy! Slap a V8 under the hood and you’ve solved your performance problem.

Purchasing a small engine can be incredibly pricey. If you were to buy a Honda GX200 engine, for example, you'd be looking at spending over $450. Luckily, there are cheaper options available that are ...

When the 6.5 HP (212 cc) Harbor Freight Predator engine in his kid’s go-kart gave up the ghost after some particularly hard driving, [HowToLou] figured it would be a good time to poke around inside ...

The Freevalve engine impressed us mightily when Christian von Koenigsegg showed it to Jalopnik on a 2014 drive in Sweden. Today, the concept is alive and well, and Wesley Kagan, a "builder" in the ...