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

Does your engine need a valve adjustment? It depends on the age, condition and brand of vehicle you’re driving. Due to the popularization of roller-follower valve train designs that reduce friction ...

From Street Stock to Winston Cup, the three most important areas for engine performance improvements are cylinder heads, valvetrains, and intake manifolds. In particular, cylinder heads affect most ...

The Ford Cosworth YB engine is one of the most receptive engines to tuning that Ford has ever produced. Let’s take a look at how to extract those impressive power figures from the mighty Cossie motor… ...