Since the 1950s, some motorcycles, notably ones from Ducati, have used desmodromic valvetrains in their engines. Why is this ...

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

Think of the camshaft as your engine's brain. It makes all the decisions as to when the valves should open or close, how long they stay open, when valve overlap occurs, and basically, everything else ...

Good ideas have a habit of not always working exactly as they should. We assembled a 0.040-over 350 small-block Chevy in the Jan. '14 issue that we called the Quick Draw .357. It was intended to ...

Drivers of 2005-06 Buick Rendezvous and Terraza, Chevy Uplander and Pontiac Montana SV6 minivans with 3.5-liter V6 engines may come into your store with a complaint of a stumble or hesitation at ...