Rebuilt, never used, Alternator-for big blocks!

hellfirechrome said
Direct fit on a 383 with stock iron heads?

with the right brackets, yup. look for a BB Cordoba or a 76-up C body with a BB and snag the brackets, bolt them on your 383 and go.
I'd rather have an original American one though than a "made in China" version (look at label in pic)