including General Motors' notorious LS engine line, most modern vehicles feature SOHC or DOHC engines. But what does that mean, and what's the difference between the two? First of all, SOHC stands ...

There's nothing like a good 427-cubic-inch V8 to get the blood pumping. Here are five high-powered 427 crate engines perfect ...

While removing the cylinder heads can make the job even easier, replacing the stock camshafts in single and double overhead cam (SOHC and DOHC) engines is a simpler task than with the centrally ...

The standard ‘67 Firebird engine was a 230 cubic inch (3.8 Liters) inline six-cylinder with a single overhead cam (SOHC) putting out 165 HP with a single one-barrel carburetor. The upgraded ...