so I own 98 XJ8L with the dreaded nikasil problem with 114k miles and it's starting to show early symptoms of liner failure (hard time starting when cold) although once it's warmed up it's fine. I've located several low mile engines from 2002 to 2003 xj8s however I know they wear different engine designations. does anyone for a fact if these two are compatible? I assume minor parts probably have to transfered to the new engine from the original but as far as motor mount, transmission, ecu etc would they all work together?