Journalist with 30 years in news writing for CNN, KLAS-TV, WCMH-TV, Newsweek, Mediaite, and RawStory. Author of the award-nominated non-fiction book, "Stealing Sisi's Star," now a serial podcast ...

This is accomplished with accurate machining on the valve seat in the cylinder head and on the valve face. This is what is called the valve job. A stock-type valve job sometimes uses a wedge ...

Instead of valves that open by being pushed away from their seat by a camshaft, this design uses a cylinder that is scooped so that as it rotates, its ports are exposed to either the intake or the ...

The single-blade valve is the most common type. It consists of a single solid disc (or blade) that seats against a metal or a compressible-bulb (ceramic) seal. The double-blade valve is used when zero ...

A few days ago, we published a report highlighting the valve lifter issues some General Motors customers were experiencing in certain vehicles equipped with either its 5.3L V8 L84 gasoline engine ...