Is this another "put a Chevy in it and make it worth more" deal???
Why not the Gen III Chrysler Hemi, as that swap is known and has been done by a few people in here??? Certainly NO tissue rejection issues that way!!
The ONLY advantage to the LS architecture might be the electronics to run it? I understand that IF you take a Gen III Hemi, change the crank and cam, such that the firing order matches that of the Chevy LS motor, you can then use GM electronics to run the Chrysler engine.
Why? Allegedly more flexible electronic software to better tune it for modifications?
As neat as the Gen III Hemi does in front of the ZF/Chrysler 8-speed, that would make one great performing older C-body! ONCE you put a 3.55 gear in the back (so you can use OD at highway speeds). Last time I checked, which might have changed since then, there was no interest by FCA is doing a controller for non-OEM uses of that transmission (i.e., street rods and such). Perhaps somebody's changed that by now?
I suspect the LS controllers to run the engine and trans will be quite more than you might be saving, even if the engine is a freebie. Plus the need to replace the existing TorqueFlite and what mounts it to the engine and body.
The other side of things is that the cars will be "collectible" to a small number of people, comparatively. Value will be depressed, as a result. So "modifying" one as you propose can result in an "oddball" that's worth even less money, except to that Chevy guy that doesn't want to drive a Chevy.
Your car, your money, your investment. The Chrysler Gen III Hemi seems to be the more appropriate way to go that will probably cost less AND keep "everything within the family".
CBODY67