Preparing a unibody Chrysler for one of Mopar’s greatest creations, the Hellcat engine, is no small feat. Structural integrity is obviously of the utmost importance. Not only does the sheet metal need to be solid, but extra reinforcement in the form of frame rail connectors, torque boxes, and a core support stiffener is almost an automatic requirement.
As the AMD Installation Center has shown time and time again, quality replacement panels from a quality supplier like Classic Muscle Metal can quickly turn a body from rotted to rockin’. That’s important because the Chrysler unibody depends on each individual panel’s solidity as they all come together to form a structure that’s proven to be able to take a beating.
AMD’s body components are made from the same gauge steel as original and are known to be some of the best-fitting in the business. However, 707 horsepower is darn-near double any factory rating from 1968, so USCT Motorsports was tabbed for the heavy metal help via a level 3 chassis stiffening kit and a transmission tunnel.
While the stiffening kit has been around for quite some time, the tunnel only came about recently to help with modern Hemi swaps. It’ll clear most of the popular modern gearboxes like NAG1 5-speeds, 8HP70 or 8HP90 8-speeds, GM 4L60s, and Tremec Magnum 6-speeds.
The structure it adds will no doubt be appreciated as this hell bound Coronet does its best not to turn into a pretzel.