Our 1993 Jeep Cherokee Sport needed its tired engine rebuilt, so we figured why not give it a decent upgrade while we're at it? Of course, we wouldn't miss the opportunity to shoot time-lapse video of every step along the way and hit you with another amazing addition to our Redline Rebuild series! With help from our friends at RockAuto.com, we source a crankshaft and pistons from a different Jeep engine (4.2L) and stroke this XJ's legendary 4.0L straight-6 AMC engine to a slightly more powerful and torquey 4.6L.

Thanks to our sponsor RockAuto.com. RockAuto.com 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 https://www.rockauto.com/?a=HG-YT-21Q3 to order auto parts online 24 hours a day, 7 days a week, and have them conveniently delivered to your door. Need help finding parts or placing an order? Visit our Help pages for further assistance!

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Like what you see? Watch our other series including:
Redline Rebuilds | Time-lapse engine rebuilds from start to finish http://bit.ly/RedlineRebuild
Barn Find Hunter | Tom Cotter searches the country for abandoned cars http://bit.ly/BarnFIndHunter
Jason Cammisa on the Icons | The definitive car review
https://bit.ly/JasonCammisaICONS
Revelations | Untold Stories About Automotive Legends with Jason Cammisa
https://bit.ly/JasonCammisaRevelations

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