I have a 2001 durango, i am on my 2nd 4.7 lt engine. I would like to know if I can put the 5.2 or the 5.9 in this durango without changing the transmission and torgue conv, and will I need to change any of the wiring harness and will I need to replace the computer??? someone please help me the best you can. thanks to all input...

 

You'll be better off keeping the 4.7. you will have to change everything. Do a search on engine swap.

 

well that what I expected, main thing I wanted to know about was tranny. last time I looked all over creation for a used 4.7 and when I did find one it cost me $2200. when all said and done. I have seen used 5.2 and 5.9 for sale for $700 and more if I needed the wiring and computer that why I was askin. thanksjust trying to learn more about this so I can decide. and of course I still owe on the junker. lol so if i can do it with other than the 4.7 I would like to find out. kinda burned on the 4.7,

 

2nd engine eh? what happened to the first?

 

had overheating problem with the first engine. replaced waterpump and radiator ran good for a few thousand miles, then overheated again and then would not start at all. pulled plugs found water in 2,4,6 cylinders, pulled heads off found hole burnt in 2 cylinder, looked like someone took a blow torch and blew a hole in the piston top, installed a used motor cost about $1500 for a used, drove it for about 10,000 miles and started missing really bad. found water and oil in the #2 cylinder pulled heads found hole agian in same cylinder and looked just like old motor. that is where I am now. I have called some of the local salvage again for engines no one has one in stock, one place can get me one in two days $1250. just dont know if I want to spend the money for a 4.7 or find out what other options I have.

 

where are some of the threads for engine swaps???

 

maybe you have another issue that is taking out the motor... low fuel pressure??? causing it to run lean? bad o2 that just is getting past the OBD???