The procedure should be similar to the one described in the 1955-2nd series Truck Shop Manual.

Welcome to the discussion boards.

If you are going to keep you truck for a while, you might want to obtain an Owner's Manual and Shop Manual for the year of your truck and for the year of your engine. Check the Links section for names of vendors that sell these manuals (or, check out eBay).

Post the various casting codes and serial number and people will try to help you identify the year of your engine.