From Street Stock to Winston Cup, the three most important areas for engine performance improvements are cylinder heads, valvetrains, and intake manifolds. In particular, cylinder heads affect most ...

Every motorhead dreams of squeezing a little more juice out of their engine, whether it is through simple upgrades like swapping their stock air filter for an aftermarket cold air intake or full-blown ...

Sometimes profiling a builder is as simple and natural for us as turning the ignition key on one of our vehicles. Hesco has been building engines for more than 34 years. Why does this interest us?

Drag racing is an exhilarating motorsport where cars reach incredible speeds in mere seconds. However, the immense power and pressure involved can lead to catastrophic engine failures. Engineering ...

Gearheads and faithful Jalopnik readers already know the basics of an engine's bore and stroke, but for those that might be new here, let's dip our toes in the shallow end. An engine's bore refers to ...

In the interest of preserving hot rodding history, we frequently republish old stories simply for the fun of it, but in cases like this camshaft technical overview from three decades ago (“Choosing ...

Think back to science class in school. You were taught that the Earth is a gigantic sphere with a thin layer of atmosphere over it. Despite what Flat Earthers claim, the air we breathe does not need a ...