Help with swapping a ISX 871 to a ISX 2250 or 2350.

[UnitedDiesel340]

Thank you for the feed back.. we located in the BVI.. the US laws dnt apply down here.
Meaning you can do anything you want with the truck. As long as it safe to drive they don’t worry.
I totally understand and I also agree with you.. I rather the Cummins 870-871 over any other Isx.
I think those work the best in my opinion… I will try to convince the customer to stick with the 871. But was also just looking knowledge on those kind of swap if I actually got a chance to do one.