I’m looking for a 130 to 140 amp 1 wire alternator that will work with b1 heads with factory brackets, I would appreciate any input thanx.

Tried them all and one company stands out. These charge at idle with all my crap running.

https://www.mechman.com/1963-1985-click-for-different-models/

https://www.mechman.com/universal-custom/

The front oil drain hits the square back alt, I had to grind on the alt to fit. That’s why I’m asking if there’s a 1 wire alt that works with b1 heads.

Well, I run my alternator off my front plate...Makes it a lot easier to put it where it fits....

Nice install, I can’t do that, vacuum pump is down there.

High mounted one in my A-body...

Not that it would be that fun to do, but turn some spacers on a lathe to push the entire front drive out 1/2"?

I bought and used a Power Master single wire 100 amp on my pump gas Duster with a 400 stroker motor using elephant ears for the front motor mount
You might want to look closely at using the power steering boss on the driver side of the water pump housing to mount your alternator

I've run East Coast Auto Electric ones for years and the only one that failed was in a fire. Thye rebuilt it and got it back to my quickly. I currently have this one on my truck.. BUt I use a low mount Doty kit to mount it. On my 64 with the B1 it is also with a low mount kit. They sell 12 and 16v versions since its a race car I have a 16V

https://www.eastcoastalternator.com/product/16v-160-amp-one-wire-alternator-powder-coated/

Another solution would be to run a front drive mandrel so you can do just about anything you want for pulley arrangement and offset.

AG.

Looking back to your picture, I think you could retap the head and go deeper with the pipe thread to screw that fitting in right to the shoulder, seal it with hardset gasoila thread sealant. If you could get a elbow with pipe thread
on the outlet, you could skim the back side of the 90 to get a smidge more, then move the AN fitting down below the alternator.