Coolant leak -hydro locked engine

I was upset at first that they failed.. but crap happens! What really upset me was why I had not been told that they had problem when the engine was being built all they had to say was we have problem with one head and had to epoxy it and not sure it it will hold what do want to do get a new head or fix what I have. Just be up front and tell me what is going on. If I paid $500 for some guy to build my engine , I would not been upset. I paid a lot of money for this engine and the builder is suppose to be top notch and came highly recommended to me. But hell they are only a thing and I will try and fix them. As they say life goes on and why not have fun...