Yes they could still be machined flat but I have to determine if there would be enough meat left on the arms as the insides are concave. The inner portion was bored on the lathe to allow a circular valve stem bushing to be inserted.
One could make lots of changes over the designer's plans but also spend a lot more time in doing so.
Dave
Edited 1 time(s). Last edit at 03/23/2020 06:12PM by ROW Explorer.