post #1 of Old 02-16-2011, 04:26 PM Thread Starter
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1988 YJ Wrangler 
Join Date: Feb 2011
Location: Durant
Posts: 2
98 Grand Cherokee 4.0 into 89 YJ?

I have seen where several people have swapped their 4.2 for a 4.0, so I know it's possible. My question is are there any other issues with using a 4.0 from a 98 Grand Cherokee besides those documented from using a Cherokee or TJ engine?

I've got a line on a complete engine with wiring and ECM. I would like to use this engine with my 4.2 crank and rods if it is about the same as the others mentioned.

Thank you in advance for all your help.

Sboone14 is offline  

4.2 to 4.0 swap , engine swap

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