After all is said and done...
It is indeed possible to turbocharge a 6.2 BUT, I would need to pull the engine, construct a custom low profile intake manifold, and find oil to supply the unit, and rebuild the fuel pump for higher output, and make custom brackets for the exhaust to turbo fittings, etc..., etc..., etc...
If these were super rare short-blocks or if the turbocharged engines were unobtanium, then it would make sense. If a simple bolt-on kit was still being made, it would be easy. Whipple stopped making the 6.2 Diesel blower, and Banks only makes a side mount unit. Space constraints make using other affordable options impossible. The same technology I used to twin-turbocharge my numbers matching Corvettte and supercharge my numbers matching GTO just won't work here.
The smart dollar is on a simple swap. I needed time to assimilate all the information, and that seems to have been a problem for some people. This is why I asked specific questions in order to make a mental map of what was necessary.
RWH, you're correct and I thank you for your input. I thank you for jumping back into the forum and I'm upset that issues that de-railed the thread were insulting to you and caused you to stop contributing to this thread. I will PM you my apologies.
Everyone else, IMHO modifications are not bad, but only if they make sense. The new M998's have evolved from 6000lb to like 12,000 with new axles and such with time. The military is not sentimental and they will modify anything (without respect) to make it fit a purpose. As a civilian I will modify my vehicles to make them serve my purposes occasionally. I hope that is not called Bubba-fying.
In conclusion to the turbocharging a 6.2 question:
Is it possible?... Absolutely.
Is it feasible?... Not so much.
Thanks everyone!
T