Originally Posted by
blindsquirrel
Don't segment swap for something like this. The operating systems (segments are just sub-operating systems) are not different, only the settings inside them are different. Open your existing file and a stock file for the new engine as a compare file. View Comparison Log, go through and right-click & Copy Over Selected Differences for any/all items that are different between the two engines. With a mix of new engine with some old components you might not be able to just do the whole entire Engine section in one go.
If you use the 6.2 injectors copy all the injector stuff from the compare file. If you keep the existing injectors, don't.