Re: 4.0 Head on 4.2 Block
My 87yj has an 86 block in it. We got a 92 4.0 head and put it on. When test fitting thehead the water jacket problem was pretty obvious. Mine still leaks, but not bad with the epoxy. The expoxy is not the way to go though...I'm going to clean out the epoxy this weekend and put in some .75" freeze plugs. Hopefully that will stop the leaking. I'm also going to enlarge the water jackets on the head that do match up with ones on the block to the same size as the ones they meet up with in the block. I'll let you know if it works after a week or so of driving.
4.2 w/<font color=blue>(4.0 head & MPI)</font color=blue>
Process of a moonguy after beer
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