Speedmaster heads revisited.
Ok all four head bolt bulges are gone and the wall is a lot straighter. It will get straightened more as I go along. Pinch now went from .922 up to 1.015 to 1.045. I will gain more as I continue to straighten the wall. Head bolt bludge measured 1.375 and it’s now 1.580 porting over to my tubes. I will gain more when I start on the other side of the runner but .200 is a lot of “prime” area. That is my Ribeye cut of the whole port.
Ok all four head bolt bulges are gone and the wall is a lot straighter. It will get straightened more as I go along. Pinch now went from .922 up to 1.015 to 1.045. I will gain more as I continue to straighten the wall. Head bolt bludge measured 1.375 and it’s now 1.580 porting over to my tubes. I will gain more when I start on the other side of the runner but .200 is a lot of “prime” area. That is my Ribeye cut of the whole port.