I had a head gasket blow and discovered that my Brumfield head was low in the center where the head gasket failed. I noticed that a few people mentioned that the head is not supported at this area. This may be the possible reason.
Anyways, I brought the head to my buddy's shop, Day Custom Engine and we had to skim off .010 to get the head flat again. It was also slightly warped at the front by the drivers front of the head but only by .003. Torquing head bolts would have corrected that, but I now have a truly flat head. You can see the pictures and video below.
Area drawn with sharpie is the low spot....
..so we built up a support table on his high speed mill..
Fired up the mill. You can watch the video below...
LINK TO VIDEO
Here we are at about .007. Notice the center is still low and hasn't been cut yet.
And after the last pass at .010. Flat head again!
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