How about a NOS Mopar crate engine from 1983?

[MoparKidD-4]

I am not needing any gaskets (that I know of).

FelPro still makes the gasket - but will only sell them with a complete gasket set.
BudW

I think I know the ones you're talking about, always saw them in the gasket sets I got for small blocks but could never figure out what the heck they were for. I guess I'll hang onto them!