I have just purchased a 55 1st series 6400 which had the original 261 engine replaced with a 58 261. The previous owner moved the radiator forward and down to accomadate the long shaft water pump on the 58 engine. I would like to move the radiator back to the proper position. Is it possible to mount a short shaft water pump on this block and if so what year would match the bolt pattern on the 58 block and where could I find one. I have had no luck with local auto parts stores. If anyone has any other solutions or ideas I would appreciate any and all help. Thanks

Dave Folsom in Maltby, Wa. sells modified pumps for this purpose, he may be able to help. 425 485-0173. Good luck, Dick.

Thanks for the lead Dick. Dave sells an adapter plate that allows one to mount the older short shaft pump on the newer engine. Thanks again, Rico

Rico, glad to hear Dave was able to help, he does a lot of this type stuff for a living and is very good at what he does.