Shipped fast. That was nice.
*See attached pictures*
Unfortunately, there was FOD (Foreign Object or Debris) in one of the ports. It appeared to be a small shard of aluminum wedged against the valve guide area. There should be ZERO debris or foreign objects in such critical areas upon product arrival. Most people would not have seen that.
Mating surface to block looked good. Other sealing surfaces had some minor blemishes, so I stoned them flat, just to be sure.
I won't be able to review it's performance until I get the engine back together.