The design of cylinder heads has evolved from merely a cast-iron lid like the early flatheads (the valves were located in the block) to current sophisticated overhead-cam engines that stuff as ...

The camshaft activates pushrods that move up and down to operate rocker arms that open and close the valves in the cylinder head. For the most part, a single overhead cam motor is a much more ...

Cylinder heads tend to be made of aluminum and feature ... This type of valve train is called "twin cam," or "dual overhead cam." Numerous other designs and layouts of valve train exist, but ...

For that reason, we traveled to KT Engine Development as cylinder headspecialist Kevin Troutman rebuilt an overhead cam head for a Ford 2.3Lengine that races in a Mini-Stock class. One of the ...

while DOHC stands for dual overhead camshaft. That means that SOHC engines have a single camshaft located inside the cylinder head above the engine pistons, while DOHC engines have two camshafts ...

In Part 1 of this story we introduced you to Ford's new-generation overhead ... type and the cylinder heads used. It's also important to note Romeo SOHC engines have bolt-on cam sprockets, and ...

It is when compared to overhead camshaft designs. Overhead camshaft engines use one or two camshafts per cylinder head. If one camshaft is used, it is often referred to as a SOHC or single ...

single- and double-overhead-cam engines with twice the number of valves per cylinder. The idea of locating the camshafts in the cylinder head was not new, but to a populace still unaware that a ...

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.