Was planning on bolting the head on my 261 today. Lined the head gasket up to the block and noticed that a few water jacket holes aren't the same diameter. Got the gasket in a kit from Best Gasket, the gasket number is 639. Seems to me the small hole diameter would restrict water flow and cause erosion of the gasket. I attached some pictures that should show what I'm talking about.

On another note, were these engines supposed to have alignment dowels for the head?

Any thoughts? Have some spare time here with the virus pandemic, good chance to get some stuff done.
Attachments
261 head gasket 1.jpg (214.76 KB, 164 downloads)
261 head gasket 2.jpg (207.49 KB, 164 downloads)
639sa.jpg (23.52 KB, 162 downloads)