Originally Posted by Kitch There is some good info here on the Vortec coolant bypass http://www.gearhead-efi.com/Fuel-Inj...Manifold/page2 I run a 94 water pump because the factory coolant bypass passage now works with the hole I drilled in the Vortec head. Dude! What a great thread. Thanks for this!!
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Originally Posted by Kitch
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