PDA

View Full Version : Engine swap questions

RMD
October 2nd, 2006, 07:54
What complications are there in swapping a 4.0L from a 1990 xj into a 1991? As I recall, 1991 was the first year for the HO version of the 4.0L.
jeepdude10000
October 2nd, 2006, 10:17
the computer and engine wiring harness would be different.
ROBZ95Xj
October 2nd, 2006, 10:28
the intake and heads are different, it will take alot of work to make fit, not worth it in my opinion