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Our favorite thing about the world of horsepower, is the constant endeavor to make it ...

Our favorite thing about the world of horsepower, is the constant endeavor to make it bigger, or more powerful, or more loud than the guy before you. Mike Harrah of Caribou Industries Inc. is a prime example. This guy is always pushing the envelope, and regarding this massive engine he built in the video you are about to see, he destroyed that envelope!

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Mike introduced this V24-71 Detroit Diesel “Big Mike” engine, a few years ago as the biggest semi truck engine ever made. This monster of a semi engine is supposedly rated at over 3,000hp and uses 12 – 871 blowers and this guy is spraying nitrous to get the job done.

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The video you are about to see is showing this nasty power plant starting and revving. The sounds will make the hair on the back of your neck stand up, and will have you putting a little extra weight on your right foot. Check out this “Big Mike” engine cranking up while its hooked up to an Allison transmission inside of a totally custom 359 Peterbilt truck with a HUGE 40-foot long custom chassis to hold it all together.





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