I have a '76 loadstar 1700 with mv404, IH 5 speed, 2speed rear end. This truck has 26k original miles! A tech center in Oklahoma used it to move a mobile classroom so it's short wheelbase(gonna put an IH pickup bed on it). Has the old under-dash ac that works! AM radio works! Still has the instructions for the radio and the ac warranty info and when it was installed! And the line setting ticket is still in it. Hopefully I uploaded the pics correctly.. Anyways, the previous owners thought the engine was a 345(it is no doubt a 404) and they threw a bunch of parts at it to try to get it running, turns out all it needed was all the connections on the wiring harness cleaned and a carb rebuild, ole girl fired right up runs awesome! However I have not had any luck finding 404 parts, parts stores can only pull up SV engines... And I haven't had any luck yet online. I'm assuming all the ignition components will work, because they are so far, (holley gold box ignition). I bought a water pump for a 345 before I figured out it was a 404, will it still work??? It appears to be the same.. And I believe I need spark plug wires, will any IH v8 plug wires work??? Thank you all for your help, and sorry for the long winded post.