Yes on my head lines we ran the block-to-head face "fat" in case we needed to do a clean up cut for any scratches or nicks that they may have gotten while handling them from tear down engines.
It also depends on how they maintain the head molds also to make the proper combustion chamber volumes...
My point was you have to measure the parts that you have to get accurate numbers. The book numbers do not "jive" with the spec's if you try to do the compression calculations from the specs in the service manuals....
