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 ...

If you stop and think about it, one engine has made motorsports in the United States for nearly 50 years. The Offy was a great engine, as was the four-cam Ford. Who can forget the mighty Mopar hemis?

Any gearhead worth his or her salt knows that whether it's a SOHC, DOHC, or OHV engine, the camshaft is considered the brain of a four-cycle internal combustion power plant. The camshaft's profile ...

I started learning to work on cars in the late 1970s by helping my stepdad turn salvaged mid-1960s Chevy Chevelles into street-stock-class race cars. Throughout that period, I had my hands on a number ...

One of the most common valvetrain upgrades for pushrod-style engines is roller rocker arms, which are often said to increase horsepower through reducing friction. But is it true? You’ll find out on ...

Chevrolet is known for producing a lineup of powerful small block Chevy crate engines. However, the biggest Chevy crate engines include big block varieties as well. Chevrolet's largest displacement ...

The typical four-stroke engine is made up of hundreds of parts. These parts are all designed and engineered to work together to make a prescribed amount of power, torque, engine longevity, and other ...

Both the Ford 351 Windsor and Chevy 350 small block V8s need no introduction — they're pretty much ubiquitous in the aftermarket scene. While forum users are almost always fighting over which past-era ...