T100R rockerboxes

Prepping the rockerboxes and rockers for assembly.  The first two photos show a stock rocker compared to a rocker that has been contoured and polished.  This is not done to lighten the rockers or for cosmetic reasons, but to deny cracks a place to begin.  In stock form the rockers suffer no shortage of stress risers.

Here are the rockerboxes, cleaned and polished.  I've lapped the cylinder head mating surfaces perfectly flat along with the inspection plug gasket surfaces.  They were then set up in the mill so that the cylinder head bolt holes could be spot-faced to ensure that they are perfectly parallel to, and exactly the same height above, the head mating surface.