Last month's "How It Works" story gave you the basics of the four-stroke cycle, describing the motion of the intake and exhaust valves in relation to the piston moving up and down in the cylinder.

Desmodromic valvetrains allow for higher revs without needing to worry about valve float. So why do automakers not often use ...

This installment of Toyota's Engines 101 series takes a closer look at one of the most critical parts of an engine: its valvetrain. The video establishes what parts comprise a valvetrain, looks at ...

Late-model engines have spoiled us. The LS-series engines are so well engineered that many car crafters consider them indestructible, which isn't exactly the case. But there is something to be said ...

At its most basic level, an engine is an air pump. Internal combustion engines breathe fresh air and expel wasted exhaust gases to make power. Something has to tell those intake and exhaust valves ...

The Camaro ZL1 engine build begins with the removal of the stock valvetrain as the process of upgrading the performance components starts. Each part is carefully taken apart to prepare the engine for ...

TriPower is a General Motors engine technology that aims to deliver optimized operating modes for different engine speeds and loads. The principle behind TriPower technology is to make the most of the ...