Quote:
Originally Posted by Captainfab
When you say "all the ports on the face are the exact same", where are you looking? the exhaust side or intake side? I'm talking about on the deck surface of the hears. Every OEM Vortec head that I have seen, did not have the thermostat bypass hole.
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i was looking on the deck as well. i had the valves facing me, and by ports i meant water jackets.