engine replacement cost

Labor cost for this job is 10.5 hours which does not include the transfer of accessories.

I have a 2007 Nissan Xterra with a bad motor, I have a friend that has a 2004 Nissan Xterra that has a motor I could use for free I realize it's not the right here or make of motor but could it be swapped out and made to work or is it too much of a nightmare to attempt?

as long as it will bolt in and your computer h ookups can fit it then it should be ok. if it is a different size motor then it may not work especially with the computers. we don't get engine size any longer since site has changed.

The stock motor is a 4.0 liter and the 04 has I believe a 3.3 liter motor .... I was hoping there might be a way to convert it ... wishful thinking I'm starting to figure out....

that yoou can't do because of computer issues for one thing

How can I seperate the engine drive plate from the torque converter . I've got everything ready to pull but can't gain access to torque converter bolts. 4x4 stuff in the way

This is what the manual say to do
hope that help
Remove starter and gussets.
Remove rear plate covering torque converter bolts. Index mark drive plate to torque converter for installation reference. Remove torque converter bolts