I think it might be, but it sure ain't by MUCH! I'm kinda likin the mods. That K member in the original post looks a little more lean than a factory piece and I really like moving the box over for header room. This is the kinda things Chrysler should have done.
That is because about 25 years ago, I did mods and fab work to move the k frame mount pads to use small block biscuit motor mounts. And also cut and boxed the k frame for a larger custom oil pan.
I never liked the small mount mounts and always had clearance issues everywhere with the 2 inch TTI headers.
That is what led me to fabbing the Engine Positioning/K Frame Cradle in this post: Added More Photos - "Home-Brewed" 67 Dart 440/512 B Body Engine Mounts
With that fixture, I was able to hold the engine/transmission in the proper positions and then fab the k frame pads to the engine mounts.
When finished with the fab work, I rolled the engine/transmission assembly under the car and bolted it in place.
Everything fit 99.9%.
The ONLY issue was the idler arm/drag link on the passenger side was still too close to the header tube and oil pan.
This was due to not getting the converted idler arm mounted at the correct angle. Somehow, I screwed up the angle on the fixture I made to hold the bracket in place using the information posted by @moparmat2000 here k frame dilemma.















