That's the fundamental problem with "local shops". You "hope" that they honestly know the tolerances on the M/B and you "hope" that they actually can measure them. It's quite a bit of an effort when compared to a Chevy.

Many of us have been very disappointed with the capability of local shops. In my specific case, I pulled the head from the shop after it sat six weeks and sent it to Metric. Others were not so fortunate and found that the valve guides were way oversized and the engine consumed significant quantities of oil.

Do not believe any posts on this thread referring to how easy it is to rebuild these heads...........unless that individual owns a machine shop and has done 50 of them successfully.

A further example of this advice is the gross misstatement about checking the head for cracks. The only confirmed way to ensure the head is not cracked is to have a proper rig to pressure check it. "Cleaning it thoroughly and inspecting it closely" is not going to cut it.