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 ...

The 300hp 4.6-liter engine found under the hoods of S197 Mustangs is certainly the most potent bullet of any GT. The bottom end is virtually identical to the previous generation's modular engine, but ...

Apparently, there is no ceiling when it comesLS performance. Just when it seems an insurmountable threshold of horsepower, speed, or low e.t. has been achieved, the next racer is able to shove another ...

Since the first Mustangs and Falcons were purchased secondhand, gearheads have been pondering whether to build up the straight-six workhorse economy engines or swap out the six in favor of a V-8. The ...

The Datsun 240Z is one of the most beloved sports cars ever made. More than 50 years after its debut, people are still modifying, improving, and perfecting this legendary machine. Advancements in ...