Motor swap

[TonyJ]

I have a 1987 jeep comanche can I swap the motor with a 1993 motor?

[olddude]

55 minutes ago, TonyJ said:

I have a 1987 jeep comanche can I swap the motor with a 1993 motor?

Are they both the same type motor? 6 holes or 4 holes?

[Pete M]

just the block?  or the entire fuel/wire harness too? 

[89 MJ]

Here is some info if you have a 4.0 and are keeping it Renix. 

 

[TonyJ]

2 hours ago, olddude said:

Are they both the same type motor? 6 holes or 4 holes?

They are both the same type motor. 4 holes. 

[87MJTIM]

I put a 93 XJ 4.0 in a CJ7.  I pulled the engine wiring harness and the ECU to do the install.  On the CJ forums, there is a rule "Five Wires to Fire."  That means that just five wires from the "new" engine wiring will connect to the "old" wiring.  I don't know the number of wires for the Renix system.  You most likely would want just about everything from the 93 to install in your 87.

[cruiser54]

Okay. So both 4 cylinder motors.

 

YES. Swap as if a long block, using the intake, exhaust, flywheel from your truck on the 93 engine.