small update:
I have few hudreds of miles on it and have to say this LS swap was the best mod I've ever done to my XJ. The ride is much much better with the V8. It's not about the peak power but the torque delivery in low rpm from this truck engine (LM7) is beautiful.
All gauges except tach are working. I installed small external tach but in the future I would like to have some modul to work with the stock tach. (novak or a home made modul).
I began to mess with HP tuners and the results are noticable:
First I modified the VE table. I went from this:
to this:
and now the fuel trims are about 0 all the time. I also changed the torque management, MAF table, some shift points, etc.. There is a lot to do with this software.
Yesterday I made some underbody protection. I feel the previous color of my rear dif boring so I decided to go the "rat style" way. I grinded the color away and applied few layers of clear paint.
I also sprayed the fender flares with the underbody coating to get similar texture like the raptor bedliner on my body:
Now the XJ looks like this:
Other things:
Transmission - the 4l60e is whining during the ride so I thing the next big repair will be the overhauling of the trans :looney:
Fuel pump - the stock 2001 jeep fuel pump has enough pressure even at WOT (65 psi).
Exhaust - that was a never ending story. First I bought the magnaflow XL chamber muffler, but was too loud for DD, than I bought the Flowmaster 50 delta series - it was a little bit quiter but even thought too loud. The third muffler was the same I used with 4.0 engine but with bigger outlets - dynomax turbomuffler. It was the cheapest but the best sound for me, decent but noticable V8 sound.
If somebody is thinking about LS swap, just do it!