Modern EFI Engine Wiring Harness

[Jigsaw73]

I bought a 5.2L Multiport EFI engine and automatic transmission to swap into a 1972 Dodge Charger. The goal is to make a reliable daily driver / highway cruiser.

The engine is a 318/5.2L and the auto trans is a 44RE. It is an older engine (1993 - 2003) with a multi-port fuel injection intake manifold, a 2BBL throttle body, and a distributor. This is the kind of engine you can easily swap an intake and card setup onto ...but I'm hoping to keep the original EFI setup. I am having the hardest time finding information on an engine wiring harness. I am still looking online but I'd like some help. Is anyone out there doing (or hopefully has successfully done) an engine swap like this?

Can I just use any engine wiring harness and PCM for the date range of the drivetrain? Maybe something I can pull from one of the local salvage yards? ...Or does is have to be specific to this engine setup (i.e., it came out of Jeep for example, should I get a harness out of a jeep)?

Hopefully someone can point me in the right direction. I'll upload some photos I took of the codes on the valve cover. Thank you.

 

[rolling_Thunder]

You should be able to snag a factory harness pretty easy - not much difference between the 5.2 and the 5.9 so you're good there - just get a later harness from 1998+ since you're running the "RE" transmission - the earlier harnesses did not have provision for the electronic transmission.

The PCM should be marked for what engine size -

 

[Don Frelier]

You will also need to do some homework on a fuel pump/system.
But if you keep it essentially stock you will need to add an O2 sensor as well.
They are terrific engines for daily use and last almost forever.

 

[Jigsaw73]

Yes, I'll add an O2 sensor and weld a bung to the exhaust likely at the header collector. I was thinking of getting a fuel tank with an in-tank pump/sending unit combo out of something modern. Hoping an aftermarket Charger, Challenger, or possibly Magnum tank will have similar dimensions. Although I think all 3 of those choices have a side inlet tube for the fuel filler...I'll have to figure something out.

EDIT: Doesn't seem too hard to figure out. After a quick Google search, I see there are options for an aftermarket, universal EFI fuel tank that will fit.

Thanks.