Well today was a big and stressful day. I got all of the exhaust valve work done. Drilled and reamed the exhaust valve guide holes and machined the valve spring bosses.

Everything seems to be working out as I planned.

This is the best part. The bores came through right where I needed them to. After I had printed the sand molds I realized my valve angle was off by half a degree. That’s why the bore of the valve guide is not centered on the boss. Future heads won’t even have that boss on there. I’m not really sure why I put it in  as there is plenty of support for the guide without it.