This is a category that is pretty rapidly going away. You'll be hard-pressed to find an overhead valve — also known as a pushrod — engine in anything outside of a General Motors LS/LT V8 or one of ...

Muscle cars have always commanded awe and yearn from the American auto connoisseurs courtesy their blazing speed and dramatic looks. Interestingly, the fair share of speed technology incorporated in ...

It seems, for the modern American production car. that the 'L' head engine is a thing of the past. Present design trends indicate that the few remaining flathead engines now in production will be ...

General Motors’ all-new 3.9L V6 has been honored with a Breakthrough Technology award by Popular Mechanics for its innovative use of variable valve timing in an overhead valve engine. For ages GM has ...

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