Ever since humans started using motor cars, they have undergone massive transformations, makeovers and evolutions. Every part of modern-day vehicles is a highly advanced version of what was used in ...

Chances are you've heard of the Racing Head Service. Back in 1967, RHS started out life as a manufacturer of racing cylinder heads but soon grew into a full-service operation, offering turnkey engines ...

On our test subject, a 2001 Camaro SS, these upgrades were realized during an engine build that was completed in 2007. At the time, the budget allowed for a set of PRC Stage 2.5 5.3L heads, while a ...