IMO, either the rope seal or the rubber seal would work, but in either case, more important is the condition of the sealing surface on the crankshaft. If it's got rust pits on it, it will eat up either seal in short order.
Kevin 1951 Chevy 3100 work truck Follow this saga in Project Journal Photos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together.
