I Suspect that you might be able to stuff a cummins in an old JAguar XJ6 if you could get the gearing right. The inline six in a jag is a very heavy engine. The Cummins might be a little tall, I need to check with a measuring tape.
Not that I would do the conversion on MY XJ6... However, If I was to pick up a jag with a blown engine...
Not that I would do the conversion on MY XJ6... However, If I was to pick up a jag with a blown engine...