400 BC build

All that looks great. I will share this right wrong or indifferent.
One boss was very strong on no sealant. " That is what the job of the gaskets, o - rings and the colored part on the outside of drive in seals is for. If everything is 100% clean and installed properly it will not leak! " I had to take a water rail back off because it was leaking between the bottom of the seal and the groove on top of the head. The groove was pitted. Reinstalled it with 3M weather strip adhesive on both sides of the seal ( As I was originally taught ). It did not leak as well as all the others after that.
Products like spray of copper coat is not normally recommend by engine manufacturers. Years ago I walked through a machine shop that was building engines back to back. They sprayed all the head gasket mating surfaces. They were using a blue product ( Permitex? ). I have used something ever since. Does it help? I do not know but never had a problem with it.

 

Pro tip. If you need silicone to hold a gasket in place. A thin layer of grease will do the same thing. I do use copper coat on head gaskets and a lot of other gaskets. Never had an issue.

 

Last one I built and probably the last one I ever will Could not buy a reman during Covid. I forget so much but there is a lot of good help on this forum.

 

Nice and clean!