Bore and stroke do far more than define engine size. They help shape airflow, piston speed, torque delivery, and rev ...

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 ...

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

On paper, modern engines should have buried their predecessors long ago. Computer-controlled fuel injection, turbocharging ...

Despite the steadily rising popularity of turbochargers and superchargers for hopping up early- and late-model hot rods, nitrous oxide, better known as “throttle in a bottle,” has never lost its ...

Despite advances in automotive engineering, seven major automakers continue to grapple with serious engine failures in 2026, prompting recalls, lawsuits, and warranty extensions. Problems range from ...

Generally, we associate inline-six engines with pretty excellent reliability; for example, the ultra-reliable 4.0-liter straight six in classic Jeep Cherokees routinely reach six-digit mileage counts ...

Most engine mounts are pretty simple, but they handle two very important jobs: They help keep the engine in place and bear its weight, and they cut down on the vibration and noise so that you can have ...