ProCharged 496-inch big-block dyno test 1,144 hp! We slap a ProCharger F--1A94 centrifugal blower on a built 496-inch big-block and make 1,144 hp and well over 900 ft-lbs of torque! Related Videos ...

Chevrolet's largest displacement and final, big block engine for production vehicles was the 496-cubic-inch 8.1L Vortec ... Chevrolet's most powerful big blocks ever built. The gains are achieved ...