50 Ford flathead / alternator question

[waynes50coupe]

I have a question guys.. I just dropped in my flathead engine in my 50 Ford coupe, the wiring is still original and I need to know what wires connect where on my alternator. I show 3 wires coming from the wiring harness, and have 2 studs on the back of the alternator and a separate wire enclosed in a white plastic box from the alternator.

[Butch11443]

Did you add the alternator or was it already converted? If it's a one wire you just need a wire (#10) or heavier to the battery.
Butch

[waynes50coupe]

alternator came with the flat-6 and has 2 studs on rear of alter..and orig wiring on 50 Ford.. thx..

[rotorwrench]

A person would have to identify the alternator to find out if it has an internal regulator like the modern types or whether it requires a two pole regulator like the early types. Ford Autolite and GM Delcotron are common types but there are a world of different types out there. Whatever you have can be made to work but some are much simpler than others.

[G.M.]

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Check and see if one of the studs are grounded to the case. A good ground for the alternator is required. The Ford mount on the intake you would think would be a good ground but between paint dirt and rust this can be a poor ground.