The stainless steel manifold had never been polished, but the nice thing about stainless is you don't have to do all the prep-sanding that you do with Aluminum before being able to polish it. Aluminum takes 10x the effort with sanding than it does to polish. Fortunately I had already done all of that to the head and coolant neck back in '05, so all it needed was black rouge to come back to life. Stainless is much more corrosion resistant, but tends to blue itself with heat over time. I think it cleaned up pretty well!
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