Head gasket scaping off block
Leave what coolant is in the block in there, do all of your scraping then drain coolant out, then you can flush out the coolant area with a hose if you feel you need to.
There is a plug on the side of the block under cylinder 1 & 8 you can remove to flush it good
if you desire. my .02
Edit: I had the composite gaskets on mine.


