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Old 06-19-2017, 11:21 PM   #5
TrailerTrash
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Join Date: Jun 2015
Location: PA
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Thumbs up Re: Water Pump Gasket Sealant

Ive always used Permatex Ultra Black. just a thin coating on both sides one the gasket not even enough to squeeze out. same goes for thermostat housings and around the coolant passages on the intake manifold
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'77 C10 350/350 2/4 drop and a mild street engine
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