To a numbers matching collector type guy, if it has the right date code for what he's building, who knows? I've never had much luck selling anything to or doing work for the resto dudes, they seem to want everything done at half price, and the parts should be free.... Doubt many Hot Rod types would have any use for a 265, so you're probably stuck dealing with the collectors....Try Hemmings, look through the ads and see what similar blocks are selling for.