The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

garyd1961 · 04-15-2019, 05:11 PM

You should have a bypass built into the water pump if everything is original. If it has aftermarket or vortec heads it probably doesn't have a bypass. Either way it's good idea to add a bypass hose.

04-15-2019, 05:11 PM	#2
garyd1961 Registered User Join Date: May 2016 Location: Henderson NC Posts: 975	Re: 350: Coolant flow when t/stat closed? You should have a bypass built into the water pump if everything is original. If it has aftermarket or vortec heads it probably doesn't have a bypass. Either way it's good idea to add a bypass hose.