So theory.
I know the 99’s Cummins is toast. Pretty sure it’s spun a bearing somewhere, given the knock and the glitter in the new oil.
But it’s also white smoking, burning coolant only. Not burning an oil. Nor is oil or coolant mixing. This after new head and head gasket. Block and head were milled for flatness.
Pretty sure I have an invisible to the naked eye crack in the cylinder wall, pretty sure it’s number 5.
If I pulled the exhaust manifold and turbo and running the engine, I should be able to see which cylinder is burning the coolant via the white smoke?