Deisel swap
#4
I had a TJ and tried to price out everything myself that I thought I needed and I might have needed and got to around 8-10 grand without labor. That's with some used and some new parts. 4BT is a very popular engine and it can fit in almost everything and can make quite a bit of power. For a used your going to pay anywhere from 2-5 grand depending on where you are and who you know. Diesel swap is on my bucket list and I will get it done but good luck to you.
#5
The kit they are releasing is for 99 and older tjs. More may come later. They are 50 state emission legal swaps so don't think you'll be seeing a jk kit any time soon, the diesel regs got much harder in 2000s.
#7
JK Newbie
https://www.youtube.com/watch?v=8Y8CeYfo9kc