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.

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 ...

The valve train is the "respiratory organ" of combustion engines: it manages the aspiration of fresh air and the discharge of exhaust gases, which is referred to as "gas exchange". Today, only ...

November 21, 2005 The 2/4SIGHT engine concept is based on an innovative combustion system combined with advanced valve train and control technologies, enabling automatic switching between two- and ...

The UK inventors of an innovative valve-train technology which dispenses with the traditional camshaft claim it could radically improve petrol engine performance. Jon Excell reports Major leaps in ...

It’s true, nothing lasts forever and all good things tend to have a cycle. In this instance, we’re talking about the lifespan of your cylinder head’s valvetrain. Obviously a lot of this is contingent ...