6BT In A Cherokee.

[sardo_67]

http://www.naxja.org/forum/showthread.php?t=1083172

and over on the TDI forum the people who know the VW side of things talking about the electrical stuff
http://forums.tdiclub.com/showthread.php?t=336733

[jeepkid03]

How bout a 453-T Detroit?


Seriously though, even a 4BT will require lots of modification to work, and 6BT engines are HEAVY. Personally, I would do a 5.3 swap or stroke the 4.0 for more power. Otherwise you will be spending TONS of money and might end up with a money pit. A diesel XJ is a good idea, but you might be better off building a diesel buggy instead of trying to fit one in an XJ. The 4.0 barely fits.