4.7 engine interchange
Record Breaker
Joined: Feb 2008
Posts: 1,058
Likes: 7
From: Chicago, IL
Yes, I had a knowck too and didn't pull the valve cover. Turns out when I did a rocker arm was also off. Might have been the cause of the knock. I got lucky though and foudn a great deal on a new motor so I am not too upset over it.
Rookie
Joined: Oct 2008
Posts: 57
Likes: 0
From: Ft Campbell ky/ Clarksville TN
02 4.7 durangoo
If i order a long block for my durango but i order the jeep 02 with HO what are the modifications will I have to make? and is it more expense than its worth although i think the HO has about 40 more horses. do you know how much a tone ring is and the best way to get one\\thanks
They mean you are running what is reffered to as a JTEC computer in those years. The only real difference between any 4.7 is the tone wheels. And I won't agree with you being able to take an '03 Durango motor and plug and play into a '00. '03 was the year of the change to the NGC computer, which utilizes a 32 tooth tone ring. You, on the other hand, are using a 16 tooth tone ring. Easiest way to tell if you are JTEC or NGC is to look at the computer, if it has 3 plugs on it you are JTEC, if it has 4 you are NGC.
HOWEVER, you can swap tone rings. It is a little bit of a PITA but it is possible. I am taking an '03 Durango motor and putting it into my '01 Dakota Quad Cab right now.
HOWEVER, you can swap tone rings. It is a little bit of a PITA but it is possible. I am taking an '03 Durango motor and putting it into my '01 Dakota Quad Cab right now.