Ultra Engine: Hardcore Horsepower’s 781 Horsepower Big Block Chevy 540
In the past, you’ve had to rev an engine pretty high to make serious power. But the latest cylinder heads and cam designs have allowed us to bring the RPM […]
Street Ultra 582: Hardcore Horsepower’s 805 HP Pump Gas Big Chevy
Back in 1999, Mike Petralia at Hardcore Horsepower & Dyno Shop in Franklin, TN built a 556-cubic-inch big block Chevy test mule for Hot Rod magazine. That engine made 790 horsepower […]