'97 Engine into '93???
#1
Member
Thread Starter
Join Date: Jul 2013
Location: Florissant
Posts: 123
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1989
Model: Cherokee
Engine: 4.0 RENIX
'97 Engine into '93???
Hey guys I recently bought a '93 XJ 4.0 AW4 4x4 for $200. Its got a rod through the block and I'm planning on using a 4.0 from my buddy's 97 XJ. His is rusted beyond repair so don't ask why I didn't get that haha. But the question is what all do I have to swap from my old HO engine to the new one for it to work? I know mine is OBD-1 and his is OBD-2 so would I run into any sensor problems? Anything else I would need to do or would it be able to almost drop right in? I saved this jeep from going to pick-n-pull its got some life body wise
#3
Junior Member
Join Date: Aug 2009
Location: california
Posts: 65
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1991
Model: Cherokee
Engine: 4.6 stroker
If the 93 only has a rod knock just replace the bottom end. The 7120 head is supposed to be a little better. Not to mention you wont have to worry about wiring issues. I have a 91 with an 88 bottom end. I had to relocate the coil but other than that its been fine. Just clean up the head and have the valve cover and manifold hot tanked. Its only like $40. And while your at it re-gasket the entire engine it will save you time and money in the long run.
#4
Member
Thread Starter
Join Date: Jul 2013
Location: Florissant
Posts: 123
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1989
Model: Cherokee
Engine: 4.0 RENIX
The block has a hole in it and the head I'm sure was cracked by the PO overheating it. It seized up and a mixture of milkshake oil and coolant leaked all over. My only option at this point is to throw the 97 engine in.
#5
CF Veteran
Join Date: Feb 2010
Location: Missoula, MT
Posts: 3,353
Likes: 0
Received 1 Like
on
1 Post
Year: 1999
Model: Cherokee
Engine: Golen 4.6 Stroker, AFE Headers, 62mm TB, 24 LB Injectors, Brown Dog kit, HF Cat, 3" Exhaust
From what I understand, just treat it as a long block swap.. Transfer all the old onto the new (unless you are going to get some new stuff).
#7
CF Veteran
Join Date: Mar 2010
Location: Georgia
Posts: 1,438
Likes: 0
Received 7 Likes
on
7 Posts
Year: 99 94
Model: Cherokee (XJ)
Engine: I6
I just did a 96 block to 94 swap recently. 96 is the same as 97.
I used the 94 intake, fuel rail and injectors, and power steering setup. The rest is the 96 block.
The fuel rail from the 96 won't work with the 93 because there is not a return line on the 96. The intake on the 96 has different mounts for the power steering pump. I don't know if you can swap the new steering pump setup on the old but I didn't so I did not have to deal with the fluid lines. But I think you can if people are swapping 99+ intakes onto older blocks.
The coolant temp sensor on my 94 is to small for the 96 block, I had to bend it to keep it in the hole because it kept getting bounced out of insert thing.
Good thing about the 93 is it's almost done with emissions (in my state). Obd1 only has 1 o2 sensor so it will run good with a very high flow exhaust. The 96 block runs just fine with all the 94 electronics.
While the motor is out you should do the valve cover gasket, exhaust manifold if it's cracked, and oil filter adapter o rings. Maybe a 99plus intake swap for more hp and torque (I wish I did but I'm not doing it with the motor in).
I used the 94 intake, fuel rail and injectors, and power steering setup. The rest is the 96 block.
The fuel rail from the 96 won't work with the 93 because there is not a return line on the 96. The intake on the 96 has different mounts for the power steering pump. I don't know if you can swap the new steering pump setup on the old but I didn't so I did not have to deal with the fluid lines. But I think you can if people are swapping 99+ intakes onto older blocks.
The coolant temp sensor on my 94 is to small for the 96 block, I had to bend it to keep it in the hole because it kept getting bounced out of insert thing.
Good thing about the 93 is it's almost done with emissions (in my state). Obd1 only has 1 o2 sensor so it will run good with a very high flow exhaust. The 96 block runs just fine with all the 94 electronics.
While the motor is out you should do the valve cover gasket, exhaust manifold if it's cracked, and oil filter adapter o rings. Maybe a 99plus intake swap for more hp and torque (I wish I did but I'm not doing it with the motor in).
Last edited by MonacaYankee; 04-07-2014 at 12:18 PM.
Trending Topics
#8
Member
Thread Starter
Join Date: Jul 2013
Location: Florissant
Posts: 123
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1989
Model: Cherokee
Engine: 4.0 RENIX
I just did a 96 block to 94 swap recently. 96 is the same as 97. I used the 94 intake, fuel rail and injectors, and power steering setup. The rest is the 96 block. The fuel rail from the 96 won't work with the 93 because there is not a return line on the 96. The intake on the 96 has different mounts for the power steering pump. I don't know if you can swap the new steering pump setup on the old but I didn't so I did not have to deal with the fluid lines. But I think you can if people are swapping 99+ intakes onto older blocks. The coolant temp sensor on my 94 is to small for the 96 block, I had to bend it to keep it in the hole because it kept getting bounced out of insert thing. Good thing about the 93 is it's almost done with emissions (in my state). Obd1 only has 1 o2 sensor so it will run good with a very high flow exhaust. The 96 block runs just fine with all the 94 electronics. While the motor is out you should do the valve cover gasket, exhaust manifold if it's cracked, and oil filter adapter o rings. Maybe a 99plus intake swap for more hp and torque (I wish I did but I'm not doing it with the motor in).
Thread
Thread Starter
Forum
Replies
Last Post
Coffinshaker
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
8
10-12-2015 08:27 AM
LiamLikeNeeson
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
12
09-09-2015 11:30 AM
BlvdKreeper
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
8
09-08-2015 04:03 PM
Randy Mickle
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
1
09-07-2015 12:34 AM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)