Chevrolet Viking 1955 "Rat Rod" Tow Truck

I'm not sure about this but I have heard of this truck having an engine with 1000 hp. I've seen this car few times in cruises near Helsinki. Someone else has too because this Chevy can be found in youtube on a film: https://www.youtube.com/watch?v=Y7ztmrmtwkQ Text from the youtube video description: "This Chevrolet Viking has a 8/71 Blower Powered 572" Merlin Big Block that makes around 1000 hp"