The reason for so many photos of this engine is that others would like to try and build a similar engine as this runs so well. The next 4 will be without comment as they are just different angles of the same engine. A word about the "finish" on the engine. I have no idea why it looks as though the finish is corroded ... I'm not sure what did this - flash maybe. Maybe many fingerprints as it was picked up many times before these photos were taken.