This article is published in Aviation Week & Space Technology and is free to read until Feb 20, 2026. If you want to read more articles from this publication, please click the link to subscribe.

Boxer engines feature flat, opposing pistons that move in opposite directions for smooth operation. Subaru and Porsche are primary modern users, benefiting from low center of gravity and performance.

Cummins engines have earned a bit of a cult following over the decades — and for good reason. In the U.S., they're the iron workhorses found in everything from pickup trucks to massive semis, and they ...

When Tom Nelson recently posted pictures and a video on Instagram of this unique engine he’d just finished, we knew we had to stop by for a closer look. A cursory glance at those unmistakable valve ...

Some engines earn a reputation that borders on myth, surviving abuse, neglect, and huge mileages that would destroy lesser designs. Mechanics often describe these powerplants as practically ...

Crate engines seem like they would be a good entry point for people to get into modding their cars. These are engines shipped in wooden crates — hence the name — that are made to be ready to fit right ...

When it comes to buying a used engine, there are several options. One option to get your engine like-new again, assuming the existing engine isn't damaged beyond repair, is an engine overhaul or ...

You're here because you find automotive technical minutiae fascinating. While there's plenty of cool engines in passenger cars — oddities like the Honda S800's roller bearing crank that needs no oil ...

Fans often ask our technical experts ‘What is MotoGP™ Engine Displacement?’ and this complete guide to the topic will explore engine displacement in MotoGP™, its significance per category of the World ...