Harbor Freight sells two versions of its Predator 212 engine with differing horsepower outputs. Both are four-stroke designs featuring horizontal crankshafts, recoil pull-start, and 212cc ...

Right out of the gate, let's put the Hemi question about the Predator 212cc Ghost Kart Racing engine to rest. Despite all the rumors surrounding the engine and its domed cylinder head combustion ...

Making performance modifications to Harbor Freight’s single-cylinder Predator engine has become a thing, and we’re totally here for it. We’ve seen one fitted with a home-brewed, Koenigsegg-style ...

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.

The last time we looked in on the ambitious Wesley Kagan, he had managed to put Koenigsegg-style Freevalve engine tech into a lowly Harbor Freight Predator engine. The little engine ran, even if it ...