He wanted to replace the ball valve with one actuated by a cam and pushrod. This would increase the complexity of the engine quite a bit, but with the benefit of eliminating the fail point of the ...

When it comes to modern internal combustion engines, there are two types that dominate the industry: pushrod and overhead camshaft (OHC). While pushrod engines were the stars of the show for many ...

There are two common types of modern internal combustion engines: pushrod and overhead cam (OHC). Pushrod engines have one ...

Methods of operating valves in the cylinder-head; the advantages of the valve-in-head construction as regards the form of combustion space, engine cooling and high-speed operation; the reason for ...

On episode 19 of Engine Masters, David Freiburger explains cam lift, duration, lobe separation angle, and installed centerline. Next, we test a low-rpm cam and a high-rpm cam in the same engine to ...