Join Date: Sep 1999
Location: San Diego, CA
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Re: 258/4.0 L head : which header ?
Here's why I recommend the earlier 4.0 design header. When I was looking for a 4.0 header I found one off a '93 wrangler that was cracked. I took it to a machine shop that welds headers regularly. I found out that they do all of the machine/welding work for one of San Diego's larger Jeep dealers. The welder told me he welds 3-5 of the mid 90s style headers EACH WEEK. They always crack where the two tubes finally come into one.
So, off I went to the junk yard and found the header pictured above. When I took it to the shop (when I was picking up the head from a valve job) to ask if this was any better/worse, he said simply said 'tons stronger'.
When I found the one above, I picked through 4 or 5 of the other style that were each cracked (or broken through) at the same place.
For what it's worth, and it fit with no interference in my CJ..plenty of room all around it. I did have a new tube bent to go between the header and cat.
4.6 Stroker Scrambler