Well, what? Seems to have pretty much stock 452 heads, it's no different than a warmed up 440. Whether "it's worth that" remains to be seen. Certainly not a "collector's item" so to say
So what is your actual question? Last I checked this is not an opinion forum. If it is regarding the heads you are correct they would have been machined, fit with larger intake and exhaust valves, three angle valve job, new springs and seats but would not have been ported.
