I have a question about the gasket for you experts.
My question is in regards to the water passages through the gasket. There are two passages at the front and rear corners of the valley side. I understand that the front one is open and the rear one is closed. However, there are two other passages near the middle front and rear as indicated in the picture. However, the gasket had one of these passages closed. Is this normal?
Picture showing block and passages in question:
Sorry, not the best picture of the gasket, but it has one of those middle passages close and the other open: