In the quest for performance for your LS1-equipped Firebird or GTO, the road to big-power increases usually progresses from bolt-ons into "Cam-Only" configurations, such as those presented in "LS1 ...

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 ...

In its infinite wisdom, Chevy saw fit to design the LS3/L92 LS heads as a direct bolt-on for the early cathedral-port motors, at least those with sufficient bore size. The LS3 motors featured a 4.065 ...