IF YOU’VE ever wanted to know what 1253hp looks and sounds like then check out Steve Loader’s monster big block on the dyno at Powerhouse Engines.

Measuring up at 532 cubic inches the big block Chev had no trouble rattling off the big numbers and over 1000lb/ft of torque. Check out the sound when the dyno exhaust system slips off and watch the camera shake. It’s a killer combo!