The Buick Division of General Motors never had it so good. After hammering at the door of the “Big Three” for 17 years, the door suddenly opened and even Buick personnel were amazed to find that their ...

Mike Hamilton;Grimsby, Ontario, Canada: Of all the mags I'm writing to, you give the best tech answers-period. I've got a 350 Chevy in an S-15 truck with 1 1/2-inch headers, a 750-cfm Holley, a ...

PACCAR has patented a method for starting a vehicle’s engine that involves rotating the crankshaft while keeping the exhaust valves of the combustion chambers open before fuel injection. The engine ...

Curious why some cars have four exhaust pipes? Learn what they do, how they boost performance, and why automakers add them to certain models.

Cylinder heads are understandably a vital ingredient in any recipe for "porcupine" horsepower pie, so whether the big-block in your Corvette is being built for street performance, drag racing, road ...