Today, I dug through my parts bins and pulled an 1800 head and cam towers. I cleaned and assembled everything, with new gaskets and seals. I had to drill out and install 3 helicoils which are thread repair inserts. These are not an uncommon necessity when working with old aluminum parts. I then shimmed all the valves and gathered some other gaskets so that I can ship the whole package to a friend in need. Tomorrow I will get back to work on my car!!