The Stovebolt Site Forums The Shop Area Engine Shop 292 smoking

That's what I thought, that the head bolt holds the lump in place. Now that I have the lumps out of the head I am not so sure. For one thing they are aluminun, not good for maintaining clamp loads with uneven surfaces. I don't remember seeing a shoulder on the lump where the head bolt should sit. I will take a better look at it today and let you know.