Didn't see this posted yet.
Western Champlin put a Cummins 5.9 into a S550 with a GT500 front fascia. He's got a whole video series on the build. 7:30 in the video below for the start-up.
Western Champlin put a Cummins 5.9 into a S550 with a GT500 front fascia. He's got a whole video series on the build. 7:30 in the video below for the start-up.