I bought these for my 68 convertible but they are for a 350 with a/c car and i don't have a/c i believe they fit the big block no a/c but not sure that info is on this link http://ecatalog.federalmogul.com/ $40 plus shipping continental US paypal or post office money order please thanks chris
ttt checked summit racing application and they supposedly fit 455 with a/c as well as the 350 with a/c but please do the research so you don't end up stuck with parts you don't need