Cylinder Head - 2
Flat surfaces seal better, so I wanted to make sure that not only the head gasket surface, but also the rocker box seating surfaces were flat.
I used a process the Brits call "linishing", and we Americans call "rubbing on a flat, abrasive-covered surface". The surface is that of a granite surface plate with 220-grit wet/dry paper glued to it. I used WD-40 as a lubricant, but about anything works, even water.
I put some machinist's layout bluing on the surface to gage the progress.
Ditto for the flip side.
I sent the head out to have the seats cut to shape and to be concentric with the new guides, then lapped the new valves to the seats. Did a cosmetic clean up the surfaces that show, then installed the valves. This puppy is ready to install on the engine.
Had an extra picture...