General Motors has spent decades refining overhead-valve V8s while much of the industry pivoted to dual overhead cam designs, turbocharging, and downsized blocks. I set out to understand why Chevrolet ...

The name "Nailhead" comes from the tiny valves Buick used in trying to make a V8 as slim as possible. The engine also was ...

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

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 ...

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 ...