engine compatibility
 

I have a 97 cherokee sport and have found a 98 wranglar sport engine. Both have manual trannies. What will I have to change and are the motor mounts the same? Did a google search and can't find an answer. Any help will be appreciated.

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So I found this thanks to cruiser54 which says the blocks will interchange but will I have to change the head and what else will have to be changed?

Study this:

XJ Cherokee and ZJ Grand Cherokee 4.0L engine blocks interchange.*

2000+ TJ Wrangler and WJ Grand Cherokee 4.0L engine blocks interchange.*

XJ/ZJ blocks and 2000+ TJ/WJ blocks do not interchange without significant modifications. (1991 to 1995 YJ and 1997-1999 4.0L TJ Wrangler blocks will interchange in XJ/ZJ and visa-versa).

TJ/WJ 4.0L Engine blocks underwent clean sheet design changes effective in the 1999 WJ Grand and 2000 TJ Wrangler. These blocks are not interchangeable with XJ/ZJ engine blocks. The reason is*motor*mount bolt holes and belt driven accessory mounting bolt holes are in different locations, or not present at all, TJ/WJ vs. XJ/ZJ.

I think you're fine. Heads really didn't change til 2000.

To be sure, check the part number for the intake/exhaust manifold gasket for both applications.

You should be fine, even if the Wrangler motor mount brackets are different the bolts holes are the same so you can just put your brackets on. Everything from your engine will bolt to that one assuming they have the same head like cruiser said.

Your flywheel should bolt right up to the wrangler crank without issue.

Intake/manifold gasket is the same on both. Thanks for the help.

You're very welcome.