I'm gathering the parts to put on a NOS 1966 Evinrude/Johnson powerhead. I received this cylinder head yesterday. It has one small nick, not to deep. See pic. Will this be ok to use? The school I teach at has a technical school and the Auto Tech class is going to do the build. There are two boys that are interested in Marine Tech. The teacher is super excited for this project. I appreciate your input.

