Classic Harley-Davidson motorcycle completely rebuilt in 4 minutes | Redline Rebuild - S1E8

Last summer we rebuilt the Ironhead V-twin engine from our Frankenstein 1957 Harley-Davidson XL Sportster as part of our Redline Rebuild time-lapse video series. Now, after a bunch more photos, a few more busted knuckles, and some late nights, we present you with our completed custom ’57 Sportster time-lapse build. She spit some fire and gave Davin’s right leg quite the workout from all of the kick starts, but she’s finally good to go and eagerly awaiting the spring thaw to stretch her legs on the open road. Thanks to our sponsor . is an auto parts retailer founded in 1999 by automotive engineers with two goals: Liberate information hidden behind the auto parts store counter (by listing all available parts, not just what one store stocks or one counter-person knows), and make auto parts affordable so vehicles of all ages can be kept reliable and fun to drive. Visit to order auto parts online 24 hours a day, 7 days a week, and have them conveni