I removed my head to replace head gasket just for good measure[:)]
There is a fair amount of coking/carobnisation. I typically let my machine shop clean my heads [iron tr6 etc] but don't wish to let them hot tank the Al Tr7 head. Ideally, I'd like to soda blast it but don't have the equipment nor safety gear. I want to clean it nicely then check with my straight edge for warpage before I spend any $$ on valve gear etc.
What do you guys do to clean these [getting rare] heads?