To sleeve or to bore your engine block? That's the several-hundred-dollar question (maybe into the thousands) as you ...

Meet the Birotary, a crazy new and complicated engine that has three cylinders arranged like a star, a rotating block, a ...

I got into a discussion about engine life. I said, all things being equal, an eight-cylinder engine will last longer than a four-cylinder engine. My logic is that the more cylinders you have, the less ...

As big V8-powered cars like the Dodge Charger and Challenger approach the end of their lives as production cars, an altogether different sort of gasoline engine has become increasingly common on ...

Nobody is going to miss the two cylinders Porsche removed from the engine bay of its Boxster and Cayman — that’s the conclusion of this enthusiast after spending several days behind the wheel of the ...

Hyundai has filed a patent application for a four-cylinder engine with variable cylinder displacement. The patent application is officially for a “system and method for motor-assisted non-uniform ...

Once the Audi TT RS leaves production after this model year, just two cars will come equipped with five-cylinder engines, the Audi RS3 and (not-sold-in-America) RS Q3. Figure those two will be around ...

These days, there are fewer and fewer cars. And fewer and fewer hefty engines in them. As automakers increasingly discontinue passenger cars in favor of SUVs and pickups, they’re also moving away from ...

Photo: Honda Motor Co., Ltd. Often ridiculed by many gearheads, four-cylinder engines can be as potent as those with twice as many cylinders. Four-cylinders were among the first types of internal ...

Dynamic Fuel Management (DFM), otherwise known as Dynamic Skip Fire, is a General Motors engine technology that shuts down the engine’s cylinders to optimize power delivery and efficiency. DFM is an ...