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motor swap question

badabing

NAXJA Forum User
Hey all,
I have a 84 xj with a 2.5. The motor is tired and I am just done messing with it. I just came across a 94 xj with a 4.0. I know what a pain with the wiring and fuel stuff it would be.
The Question I have is I heard that a 4.0 won't fit in a 84 xj , being it is shorter engine bay. Is this true?
 
I believe that the space between the firewall and the radiator was lengthened in 87. (first year of 4.0)
 
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