These are new vortec heads and I pulled them apart to clean up some of the exhaust runners and noticed these inserts. There is a very slight lip on the exhaust seat that stands proud of the head. Should I try and smooth that lip out or just leave it as is? The other head I bought doesn’t have this high of a lip and the seat sits about flush. Is this worth my concern on a street engine? Should I hit it with my dremel and a stone wheel just to knock the edge down without touching the seat face? I would rather not reassemble it, pack it, ship it back, and wait for my replacement if this isn’t detrimental. Thanks for any advice!
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