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Engine swaps
Sooooo, I posted last year about a cracked head on my Mom’s ‘01 Cherokee XJ. Since then, the worst fears are realized, and the bearings at the camshaft are gone :( Sooooo. There is an ‘02 she’s interested in, the current owner is replacing a blown motor. If he hasn’t acquired an engine yet, is it possible to use an ‘03 4.0 L6 from a Grand Cherokee, and if so, how difficult is such a swap? I’m asking because I know the ‘03 4.0 L6 should have the TUPY cast head, therefore less prone to cracking. TIA for any and all help :) |
Found this.
Originally Posted by cruiser54
(Post 2665607)
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. 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) |
Thanks for that :) |
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