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 ...

Chevrolet took one heck of a chance by replacing its much loved small-block with the modern LS1 engine. The LS1 had big shoes to fill—after all, the original mouse motor was the darling of the racing ...

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 ...

More than 20 years after the first Gen III LS1 V8 rolled off the assembly line for the 1997 Corvette, it seems there are LS cylinder heads everywhere, and even more stories that have tested and ...

The teardown continues on my C5 Corvette LS1, and in this episode, it’s time to remove the cylinder heads. This crucial step gives us full access to the combustion chambers, pistons, and head ...