Joefox Posted July 12, 2018 Share Posted July 12, 2018 Hey guys, Just bought my first Jeep. Its an 89 comanche with the 4.0 5 speed manual. My question is will an xj motor be a direct swap. My mj has 179000 miles and i want to start rebuilding a replacement motor and have it ready. Thanks! Quote Link to comment Share on other sites More sharing options...
87MJTIM Posted July 12, 2018 Share Posted July 12, 2018 What year is the XJ? Yours is (probably) a Renix engine. 91+ XJs have HO engines. The engines will swap over, but you will/may need to swap all the electronics from the XJ. Fill in your profile so others know what you have. Quote Link to comment Share on other sites More sharing options...
HOrnbrod Posted July 12, 2018 Share Posted July 12, 2018 3 minutes ago, 87MJTIM said: What year is the XJ? Yours is (probably) a Renix engine. 91+ XJs have HO engines. The engines will swap over, but you will/may need to swap all the electronics from the XJ. Fill in your profile so others know what you have. Exactly. Do THIS. Quote Link to comment Share on other sites More sharing options...
Joefox Posted July 12, 2018 Author Share Posted July 12, 2018 I meant will a 4.0 from the same year xj (89') bolt up to my comanche. Quote Link to comment Share on other sites More sharing options...
87MJTIM Posted July 12, 2018 Share Posted July 12, 2018 89 for 89 is a direct swap. Just pull one engine for the other. P-N-P. Quote Link to comment Share on other sites More sharing options...
Joefox Posted July 12, 2018 Author Share Posted July 12, 2018 Cool thanks! Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.