4.0 Conversion head for 4.2
- Thread starter SenorCole86
- Start date
SenorCole86
New member
This wasn't the head for me. In the rebuild process, the valve seats were redone. There are differing opinions on this, but I am of the belief that this is bad, especially for those of us who run unleaded fuel. It was impossible to put cobalt inserts because of the repairs done on the head. But don't worry Jay, I've got another 4.0 head from a buddy of mine 
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