Valve covers with drip rails came stock on most high-performance big-block engines back in the classic muscle-car era, but started going away by the early 1970s during the dismal smog era when cams ...

Drag racers have been searching for tricks to gain horsepower since day one, and there are lots of ways to do it without spending a tremendous amount of time or money. One of the biggest downfalls of ...

The debate over the optimum rocker arm ratio to use has dragged on probably since the invention of the pushrod V-8. Even though Chevrolet made the decision easy for us when it engineered the original ...

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 ...

High mileage or a high-performance camshaft swap: Those are the top two reported reasons for LS rocker-arm failure. The symptoms are a miss with a ticking sound coming from the valve cover or needle ...