To kick off the YouTube video series, hosts Kevin Tetz and John McGann immerse themselves in the task of swapping a Gen 3 Hemi into a 1972 Dodge Challenger. And this isn't just any old Hemi—we're dropping a 707-horsepower Hellcat into the car and putting one of Tremec's brand-new TKX five-speed transmissions behind it. The Challenger is also getting a brand new coilover suspension and a brake upgrade. The goal is to make it run and drive like a new Hellcat-powered Challenger, but with the classy good looks of the original E-Body.