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**The Rocknrod** · 01-20-2019, 02:58 PM

I found a GM water pump that is used for vortec head engines and see that it has the upper bypass port.

01-20-2019, 02:58 PM	#29
The Rocknrod Moderator Join Date: Aug 2011 Location: China Spring, TX Posts: 7,280	Re: wierd cooling system problem noise ? I found a GM water pump that is used for vortec head engines and see that it has the upper bypass port. __________________ Master Chief, US Navy, Retired 1964 C10 Step-side Short Bed - In Progress 2009 2500HD Duramax LTZ 1948 GMC Panel 1956 Big Window Stepside 1953 5 Window Chevy Stepside 1932 Coupe New Seat Foam for Bench Seats?