Don't let you Boss Grind you down

This series of pictures shows the guide bosses after they have been ground down to improve gas flow. There was a huge amount of material removed and although the surface finish is a little rough it absolutly must improve the performance of the engine. In fact I hope to take the car for a rolling road tune up once I have changed the exhaust system (tubular manifold etc) and get a power curve printed/plotted to compare it with factory standard. Should be interesting and hopefully I will not have improved things in a negative way.
So here we go.
Bosses cylinder 1

Bosses cylinder 2

Bosses cylinder 3

Bosses cylinder 4

These close ups show the valve seats quite well. These pictures were taken before I did the final grinding to get rid of the sharp edges and burrs.

As for the latest progress. This weekend has been punctuated by a number of social events. It appears I have a social life afterall. And my wife does not understand the phrase "I need to work on the MG this weekend) but then maybe that's because her car is working fine and she does not have to ride my bike to work or ponce lifts off of people all the time (thanks Chris see you in the morning).

I have managed to re assemble the head with the valves and springs etc. This was straight forward other than not being blessed with anywhere suitable to work on the head. My garage is choca with the wifes Beetle Roadster (which she seems to have forgotten about) and my work bench and access to it are filled with all manner of spares for all my projects. So the floor in the lounge would have to do. I would have used the dinning table but I was being watched like a hawk. The hardest part apart from being uncomfortable was keeping the dogs far engough away so they did not malt on the head leaving hairs everywhere.

I then fitted all the studs back to the head. This turned in to a bit of an ordeal. Not because I had lost any of them but because a couple of them were damaged and needed replacing. I had forgotten this seeing as the head was stripped so long ago. After a lot of rooting about in the garage and shed I managed to find a couple of studs. So at last the head was done. Just need to throw it on.