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mjonesjr 02-24-2014 06:42 AM

7120 Head Swap
My 99 WJ has the crack prone 0331 head on it and I believe it is cracked or cracking. I've got a 94 parts Cherokee that I can nab the head and anything else I need off of it. It is a 7120 casting.

I know I'll have to fan up some brackets for the coil packs and I'll have to use a header or the exhaust manifold from the 7120 head.

My question is what parts would I need from the Cherokee and what extra work will it take to swap it on my WJ?

What benefits will I see on the WJ 4.0 with the 7120 head? Is it worththe work to swap that head on?

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