Big-block engines sit at the heart of some of the most iconic American performance cars and trucks, yet the term is often used loosely, as if it were just a synonym for “big horsepower.” In reality, a ...

Engine power is a product of its overall displacement, but two similarly-sized engines with different bore and stroke ...

Old cars, new cars, stock cars, and modded cars can all suffer from engine vapor lock. We explain this mysterious term and tell you what can be done about it. If you've ever heard the term "vapor lock ...

Engine knock is the sharp, metallic sound that cuts through the hum of a healthy engine. At its core, engine knock is a problem of timing. In a knocking engine, parts of the air-fuel mixture don't ...

Illustration: Kelsea Petersen / The Athletic; Takashi Ayoma / Getty, Antonio Calanni / AP Formula 1’s car design revolution for 2026 is the biggest in a generation. Not only are the chassis designs ...