Have you ever heard of the Silent Knight? It was a unique engine that ditched noisy valves for a weirder, quieter, and more complex design that guzzled oil.

One hundred was a lot of horsepower in 1914, even for an 8.0-liter engine in a low-production luxury car. Yet 100 was the figure claimed for the remarkable Stearns-Knight Six, of which at least 350 ...

American publisher Charles Knight was not at all impressed with his new 1901 Knox ‘gasoline runabout’. Like some other cars of the era, its four-stroke engine relied on a single valve to permit both ...

Time was when a valve job was done with some valve-grinding compound and a vacuum cup on a stick. But no more. Today's high performance engines require the same machining precision in the valves that ...

What's scarier than a Maserati engine from the '80s? A more sophisticated one from the same timeline. Admittedly, we can't really comment on its reliability, as Maserati's prototype six-valve engine ...

Add Yahoo as a preferred source to see more of our stories on Google. Automobiles were still in their relative infancy in 1905, but they had been growing more popular for years. There was a problem, ...