I recently purchased a 97 ZJ to help out a buddy. The motor has been built to a 4.7 stroker, but the transmission is junk. I was thinking about robbing the motor and putting it into my XJ. I know the accessories will need to be swapped around, but is there any problem with the long block itself?
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cruiser54
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May 16, 2024
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Go for it.
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cruiser54
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May 16, 2024
- Join DateAug 2011
- LocationPrescott, Az
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- Year1990
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- Engine4.0
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Quote:
They ARE the same.Originally Posted by 00t444e
The blocks should be the same.
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 the 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.
XJ: "Regular" (not Grand) Cherokees 84-01
ZJ: Grand Cherokee 93-98 (Gen1)
WJ: Grand Cherokee 99-04 (Gen2)
YJ: Wrangler 87-95 (Gen1)
TJ: Wrangler 97-06 (Gen2)