General Motors Corp. sees a future for engines with overhead valves, a technology most automakers have abandoned in favor of overhead camshafts. GM will introduce a family of overhead-valve V-6 ...

General Motors sees a future for engines with overhead valves, a technology most automakers have abandoned in favor of overhead camshafts. GM will introduce a new family of overhead-valve (OHV) V-6s ...

Ford pushrod V8s were used in the second half of the 1900s, but they were phased out by Modular engines that were more ...

In an overhead valve (OHV) engine, the valves are mounted in the cylinder head, above the combustion chamber. Usually this type of engine has the camshaft mounted in the cylinder block, and the valves ...

Many older cars have engines with flathead or overhead valves, and these designs also tend to more commonly used flat tappets for actuating the valves. Flat tappets place a unique demand on the engine ...

Overhead-valve internal-combustion engines, in which the valves are located in the cylinder head and actuated by a block-mounted camshaft via pushrods, go way back in automotive history. Production ...

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 ...

Q: Hi Greg and thanks for your interesting auto columns. My grandfather had a 1952 Lincoln that came with the first ever overhead valve V8 in the Lincoln line. Can you tell me more about this car? My ...

What has happened to the many fellows who were so successful with the four barrel rocker arm jobs? Frontenacs, Rajos, Gerbers, Cragars, Rileys, and all the rest. There are still a few running, and ...