QUOTE(Dr Evil @ Sep 27 2023, 05:07 PM)
Doing the same on a 85.5 Vanagon. Left head. GoWesty offers to go through the AMC heads before sending them out, changes some parts, cost about same as regular head from other vendors. I bought the un-edited head. I plan to place an SVX in this thing, so just trying to get it moving as a running project.
I had actually got a pair of the heads that gowesty supposedly goes though. Not sure what all if anything they change but the valve hardware all looked the same. I think they may just inspect them.
Speaking of inspecting, be sure to check the combustion chamber on those. it was pointed out in the facebook WBX group that some of the recent WBX AMC heads had a machining error and were not fully surfaced leaving a very small lip at the edge of the chamber. Hardly enough to notice but enough to cause the fire ring to fail in short order causing compression leaks.
I unfortunately had mine installed a couple days before finding out about this so hopefully this was something gowesty inspected for.