If it bears a Chrysler casting number, it's a Super Six intake. "Super Six" was just the marketing name (decal name) applied by Chrysler to the 2bbl Slant-6 sold in North America from '77-'83. it's not any kind of special extra-fancy setup versus some other non-fancy 2bbl setup.
The question to ask isn't "Is that a Super Six intake?" The question is whether it's iron or aluminum. There appear to be only two 2bbl Slant-6 intakes on eBay at the moment:
this and
this. Both are iron, so perfectly safe to buy without worrying about cracks or leaks.
