Olds 455 engines were blue in color from the factory,like yours. You are in luck, the 350 distributer will be just fine in a 455. The timing curve may be different, the vacum advance cannister might offer more or less timing, but thats too many details to worry about right now. It will bolt right it and function.
Earlier I stated Olds engines look a whole lot alike. The distributer, among many other engine parts like cams and their bearings, timing covers, oil pans, valve covers, etc will swap, from 330 cid to 455 cid. Except intakes.....theres more to that story for a later time.
I forgot to welcome you to this site earlier, excited you got a nice rid'n cruiser. Enjoy.
