I find myself in need of a 455 Olds engine. this one has a cracked block some were inside down low in the water jacket. so if anyone has one laying around let me know. it runs good hits on all 8 but only holds water in the oil pan. had I left off that radiator cap I wold not have found it. so right now used would be the best way to go. rebuilds are not easy to find for it.