Water pump question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Willis86 · 10-01-2011, 06:27 PM

I have a 1986 GMC c15 with a 350 that TPO put in and I'm putting a 1999 chevy tahoe serpentine system on. I have everything from the Tahoe, its all brand new accesories. My engine block on the passenger side has three holes in 2 for mounting and 1 below the mounting holes which i assume is a bypass hole. My question is the Tahoe water pump doesn't cover that hole do I just plug it and move on? Its a pre 1993 block . Most likely a 1970s truck block. Do they make a reverrse flowing waterpump with a bypass? Thanks

10-01-2011, 06:27 PM	#1
Willis86 Registered User Join Date: Jan 2010 Location: Warner Robins, GA Posts: 10	Water pump question I have a 1986 GMC c15 with a 350 that TPO put in and I'm putting a 1999 chevy tahoe serpentine system on. I have everything from the Tahoe, its all brand new accesories. My engine block on the passenger side has three holes in 2 for mounting and 1 below the mounting holes which i assume is a bypass hole. My question is the Tahoe water pump doesn't cover that hole do I just plug it and move on? Its a pre 1993 block . Most likely a 1970s truck block. Do they make a reverrse flowing waterpump with a bypass? Thanks

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