Saw these on ebay. They are aluminum LA copies with magnum runners, and combustion chambers. Just type in mopar 318 aluminum head.
The EQ heads are total magnum copies in cast iron. Avail with either magnum intake bolt pattern, or LA series pattern.
The EQ heads are either CH318A or CH318B part number
The reason i am asking is these are $313 each as bare machined castings. Might be a good deal for a budget builder if the quality isnt crap.