When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Yes, but you will need to change the injectors and convert to electric fuel. The 03 has split shot injectors so your computer won't run them properly. Also, the cam has no lobe for the fuel pump, so you've got to switch over to the electric fuel. Are you getting the intercooler and pipes too? If not, there may be a few more pieces you need to get or use the old ones off the 97.
Scroll down a little further till you find the OBS seciont (94.5 - 97 powerstroke). Those guys will be able to give you all the ins and outs of the swap.
The engine harnesses are different also. The OBS 7.3 uses 2 connector injector plugs on the VC gasket and UVCH while the Superduty has the single 9 pin connectors.