NASCAR Cup engines live in a strange space: they are tightly regulated, largely hand built, and expected to survive hours at full throttle while still making headline power. The rulebook caps ...

We assemble and test a heavily modified 7.0L engine equipped with a large supercharger and race-grade internals. The video ...

How boxer engines work, why they’re not just “flat” engines, and a 120-year evolution traced from the 1899 Benz to the latest Porsche and Subaru boxers. Boxer engines feature flat, opposing pistons ...

We look at why Mazda introduced the three-rotor 20B Wankel rotary engine, and why it only ever saw service in the Cosmo coupe ...

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 ...