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 ...

Hot-rodders can buy 427 crate engines that make between 500 and 2,000 horsepower from brands like Ford Performance and Nelson ...

The legendary racing-engine builder they called the Old Master just kept on going, building his last engine at age 92.

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 ...