What we refer to today as the LS family of engines usually refers to the third and fourth generations of Chevrolet’s small-block V8. But to understand the relevance of these engines, and what makes ...

Ford’s Godzilla 7.3-liter V8 is a potent performance engine-swap option. Brian Wolfe fortified one for boost, and it belted ...

In a pushrod OHV V8, the single camshaft in the block spins at half engine speed and its lobes push lifters that move long rods up and down, which then pivot rocker arms to open the valves, a chain of ...

When you think about it, everything in the valvetrain between the camshaft and the valve is little more than a high-tech telephone line. All the parts and pieces-the springs, the retainers, the ...

When it comes to engines made these days, things differ greatly from engines built, say, 30 years ago. Mills now tend to boast a slew of cutting-edge tech, like Nissan's new variable compression ratio ...

Correctly viewed, a pushrod engine's valvetrain assembly stands at the gateway of improved power. It is not a collection of components only intended to time and provide the correct valve motion.