I've seen pictures of an early style done in aluminum - so a long time ago someone made a run of them.
It would be great if someone did. For AMC's 360, even the parts store replacements are made in aluminum (although quality is only soso), And I've seen at least two different castings. Whatever it takes to make it worthwhile to make SB Mopar early pumps in an aluminum casting, my guess is it may not be about volume of sales but willingness to front the capital expenses.
