I run a 10si Delco Remy on my 440. 100amp Alt. You won't find anything with stock brackets. I had to make my own. You also have to "clock" the alternator for the mounting post and rear output to be furthest from the cylinder head.

I bought mine for $90USD


Family owned 1969 Charger R/T DualQuad 440/727/GVO/3.55s