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CJ5 232 to 258 upgrade

can you weld? and fab up things? no problem at all
now I do not know if they will line up perfectly, probably not, I think that getting out a tape measure and doing some measurements from the old motor and the new motor will give you a clue, then buy the new mount pads and some square tubing and go for it. Keep the old ones you cut off as a design example
 
come to think of it, I think it is a str0oked block

in that case, it should just slide in, but again, new mounting rubber and please. check out the old mounts for cracks and reweld if any
 
It will drop in.

Been there, done it in a 79 CJ5 .
 

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