Single Wire Alt setup to 65 Barracuda Harness

MonkeyMadness said

Ok so last weekend I scored a fresh magnum 5.9 out of a 1999 durango. After going through it and building it to my needs. I plan on dropping it into my 65 barracuda as the 318 lump in it now is not stock. I also have plans to mount a Whipple setup I have been holding onto, which means I will be retaining the serpentine belt as well as the Alternator.
My question is how do I go about splicing it in to the harness with out Hacking it!
I know most single wire alts you simply run the hot+ charge wire to the hot+ side of the starter.
What do I have to do to the harness to make it work.

Also I have ordered (with the understanding it may take the better part of a year to get)
A new under dash, and Motor / frontend harness from "yearone" h&m or M&H what ever..

Any and all help is much appreciated
thnaks
j

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I assume you are talking about using the alternator now on the donor engine. You need to look closely at the back of the alternator. If there is another connector socket with 2 or 3 terminals it is not going to be plug and play. You need to determine how the alternator was wired in the donor vehicle. Later model Mopar alternators were regulated by the Powertrain Control Module but I don't know when that started nor on what models.

If, as I suspect, it has a two pin connector socket on the back you would need to source a pigtail to plug into the alternator for the field circuit. Originally, one pin would have been supplied system voltage + from the ASD relay or the PCM. The other pin would have been the ground control for the voltage regulator function from the PCM. If that is the case you can use the original voltage regulator, I suppose, but it depends on your current regulator. I would use the later electronic regulator. Easy. Well, easy for me to say, sitting here on my butt.