Engine performance is like a complicated formula in which each individual part plays a role in the final answer. Some parts of the formula affect the final outcome more than others. The valvetrain ...

LS engine architecture is indisputably amazing. There are examples everywhere, including the pages of Car Craft, of engines plucked out of salvage yards making reliable horsepower even at 1,000+ hp.

Q I own a '99 Chevy Lumina with a 3.1-liter V6. This weekend I got a flashing check-engine light with a severe misfire. I took the vehicle to a shop, which told me I had two rocker arms blown right ...

The horsepower game is all about escalation. Everyone knows that the LS engines are the easiest path to big horsepower. But that also means bigger cams and higher engine speeds, and all that puts a ...