Rats! They seem to be everywhere, infesting the streets with their special brand of colossal big-block horsepower and torque. Yet despite all their power and evil reputation, there's always been one ...

Chevy's small-block Vortec heads can be an engine builder's secret weapon, thanks to the improved flow and potential for ...

Trick Flow designed the Twisted Wedge head with a 13-degree intake-valve angle along with the standard 23-degree exhaust-valve angle. Despite the intake-valve angle change, the head is a 100-percent ...