Car Craft magazine sponsored the LS Swap competition, the brainchild of CC Tech Editor Jeff Smith (right). The idea was to time how long it would take to swap out a perfectly running engine with a new LS plant. Here, the winning team from the Hot Rod Barn in Williamsburg, Iowa, got the job done in just 31 minutes, 57 seconds. Clearly, they were not being paid by the hour. We can imagine all the Hot Rod Barn customers burning up the phone line for labor charge refunds. Seriously, congrats guys on your win!