depends on how much they're charging and what exactly needs rebuilding? Does it just need new cams and stuff? It is one of the best flowing heads you can get but I've heard a B16 Si head is the same thing and you're just paying for the "type R" branding
He said machine shop so probably valves atleast
i got a gis now, i know itr is top of the line but i wasn't sure without the block and cams if it would be worth putting on.