Engine build time-lapse 840-hp Dodge Demon Hemi V-8 | Redline Rebuilds - S3E1

We love doing Redline Rebuilds (almost) as much as you enjoy watching them. And when Dodge offered up the supercharged, 840-hp, Hemi V-8 out of a Challenger SRT Demon for our magical time-lapse treatment, we couldn’t say yes fast enough. Be sure to stick around until the end to watch us put that power to the ground. More details on the project: 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 conveniently delivered to your door. Need help finding pa