Mark pulls back the curtain on his newest business venture, Graveyard Motorz! After years of planning, this partnership with his friend Don Jones Jr. is taking off! But with a shop that can't stop, and limited resources, Dougie and Marty are tearing into a Hemi Charger with high-stakes consequences.

Mark reveals what makes a numbers Hemi car "correct" when it doesn't have a numbers-matching Hemi. Meanwhile, Josh shows off the heavy metal modifications required to turn a '68 Charger quarter panel into a '69 -- and why you may want to do it.