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 ...

To celebrate HOT ROD's 75th anniversary, we teamed up with CASTROL GTX to bring you some of the stories that exemplify the core of what HOT ROD is and reflect the brand's influence on America's car ...

Testing engines is like running a marathon. There are some spots where you're way behind, and there are others where you're pulling ahead. However, the race is almost never done. Last month was one of ...

Whether you want to admit it or not, more than a few Bow Tie racers have lined up against 5-point-slow Mustangs only to discover that they-on rare occasion-aren't actually all that slow. Chances are ...

Toyota Gazoo Racing is reproducing key 4A-GE engine parts for the AE86 Corolla Levin and Sprinter Trueno. The project secures the legacy of one of the most beloved driver’s cars in history. Toyota ...

This forgotten 1980s Nissan wagon used a two-spark-plug-per-cylinder engine to meet emissions rules while offering clever ...