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 ...

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 ...

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 ...

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 ...

It’s been well over a year since we did a street cam test on the VQ35 to show you the kind of power that a set of extremely streetable cams can make with an uncorked engine. Now we’ve stepped into the ...

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 ...