Can I put detroit 12.7 ddec IV into peterbilt

I'm a driver not a Mechanic so hope you can help me out.

Specs of 2 potential trucks for project

2016 Peterbilt 587 paccar MX-13 eaton 18sp manual. 750k miles. 27k asking price (my preference is manual but could use an auto too)

2018 PETERBILT 579, PACCAR MX-13 510 HP, EATON-FULLER FO-18E-313A-MHP AUTO, 1.5 million miles RATIO 3:21 27$ asking price too

I think one of the rears Is a 2.8 on a 579 too, everything else the same as above. I'm gonna be hauling flatbed dono what ratio is better?

Also there is a 2016 579 same specs about 2 million miles for 22k$

Can I take this truck and swap the engine for a pre egr detriot 60 series 500hp 12.7L. Would it be compatible with either transmission?

With the trucks over 1.5 miles would I need to redo the rear ratios?

Just wondering what the mechanics thoughts are about making these changes and the cost to do it.

I found a company kustom trucks that seems to sell the engine mounts needed. Kustom Truck

Also how long do the transmissions last is a 2 million mile truck due for a new transmission or can they go further, I heard one person say 5 million

Thanks for any help! For the 22k or 27k truck after buying the detroit and labor costs how much money would I need to burn to get it running reliably.

 

Interesting. I saw about the new glider kits being banned or limiting companies to selling only 300 units per year or something. But I did not know about the rule about putting a pre egr in a truck that is newer than 2004, bummer.

How do people get away with deleting the epa part of the engines, technically that's not legal too I presume?

Is it that the epa may not approve but DOT won't enforce it except in CA of course?

If DOT doesn't enforce this how could the epa stick something up where it doesn't belong?

Would this be needed to wire in the engine?
Kustom Truck Parts - Powered by Network Solutions.

Another 4k added to cost..

Thanks for the help!

 

I think for 2018 it's actually Namux-4 so this would be it?

Peterbilt NAMUX4 Harness - 579 Detroit DDEC3/4 with Processor -01

How hard would it be in terms of labor to get that working I wonder

 

Ooo could I make it look like a 2018 or 2016 glider kit that always had the detriot in it which is from years when gliders were legal ‍

 

Interesting. Anyone know of any good shops that may be able to help with this assuming it's legal enough.. im on NH seacoast area