In any other universe, those would be considered ready to run heads.
They are very nice heads for a pump gas 455 and are better flowing than 6X in stock form. Here's a link to a set sold on eBay in Feb.
https://www.ebay.com/itm/25220949603...UAAOSwiLdV9XvD
Not saying you'll get that much as there must have some numbers matching mania at play on that sale.