i have a set of head bolts off of a d3 iron headed 460.they are in very good shape, no cracks, good threads, no rust, heads are nice. the engine was only spun to 5000rpm and only made about 350hp so these did not have a hard life. i dont know how much they are worth but im replacing them with studs and have no reason to keep them.$30+shipping im in memphis, tn. if you want pictures let me know.