Check out this engine build the Engine Builder team saw at the Ultimate Callout Challenge.
This LBZ Duramax came from a donor truck Josh Kaye had purchased at an auction.
The remarkable part of this engine is that even driving down the street, Rick Fletes is able to get about 30 mpg.
This 6.6L LLY Duramax makes around 1,100 horsepower on nitrous. Check it out!
Under this hood is a 7.1L Duramax engine with a unique twin-turbo setup. Check it out!