It's basically the same engine, except the 258 is stroked.
So it should look identical.
The only way to be certain would be to measure the stroke or do a compression test.
140 for the 232, 150 for the 258 -- in a perfect world though.
It may not actually help you much if it has lower compression than normal.
1998 Jeep Cherokee 4.0L AW4/NP231 211k+
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