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

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 ...

At the end of the day, an internal combustion engine is just an air pump. Proper airflow in and out of the engine is thus critical to efficiency and power. The valves atop (sometimes on the side) of ...

Modern internal combustion engines — including those that run on diesel fuel — require a lot of special parts and systems to prevent dumping excess emissions into the atmosphere. Not only are those ...

Rotary engines (also known as Wankel engines and Wankel rotary engines) are quite different from piston or "reciprocating" engines. One of the distinguishing features is that they don't need valves to ...

February 2, 2006 UK-based RCV Engines is best known globally for its range of model aircraft engines but the unveiling yesterday of a prototype 125cc Rotating Cylinder Valve (RCV) scooter engine could ...

View post: Chevy Built a Corvette ZR1X to Celebrate America’s 250th Birthday Ford will recall 90,736 vehicles as engine intake valves in the vehicles may break while driving, the National Highway ...

At one point, Oldsmobile created a behemoth of an engine with 32 valves and 455 cubic inches. But regulatory issues meant it ...