Heater Hoses - The 1947 - Present Chevrolet & GMC Truck Message Board Network

77 350 Shorty Wide · 03-15-2008, 02:54 AM

Ok guys dumb ? here. Does it matter where the heater hoses are attached? What I mean here is. The hose that connects to the intake fitting (return I am assuming) does it attach to the upper heater core inlet or lower and visa versa for the other.

Last but not least... if one was going to remove or bypass the heater core for some reason is it necessary to install a bypass hose between the intake and the pump? This is for a small block...

Thanks in advance & God Bless, Terry

benoit454 · 03-15-2008, 03:20 AM

Well not sure on what goes where but you can just put plugs in the water pump and intake because that's what I done on my monte carlo.

knightlife · 03-15-2008, 06:34 AM

1.) no, it does not matter where they attach. regardless of how they are attatched, fluid will flow through the heater core and exit like normal, it has no check valves built into it

2.) instead of installing a bypass hose, I would personally suggest installing short 5/8 bolts to make a cleaner look (stanless steel, one for the intake, one for the water pump).

benoit454 · 03-15-2008, 07:52 AM

Well the plugs I used were chrome and had a recessed allen head to it made by spectre, so they looked really good.

03-15-2008, 02:54 AM	#1
77 350 Shorty Wide Registered User Join Date: Dec 2006 Location: Yakima, WA Posts: 325	Heater Hoses Ok guys dumb ? here. Does it matter where the heater hoses are attached? What I mean here is. The hose that connects to the intake fitting (return I am assuming) does it attach to the upper heater core inlet or lower and visa versa for the other. Last but not least... if one was going to remove or bypass the heater core for some reason is it necessary to install a bypass hose between the intake and the pump? This is for a small block... Thanks in advance & God Bless, Terry Last edited by 77 350 Shorty Wide; 03-15-2008 at 03:23 AM.

03-15-2008, 03:20 AM	#2
benoit454 Chris Join Date: Nov 2004 Location: Monaville, WV Posts: 3,737	Re: Heater Hoses Well not sure on what goes where but you can just put plugs in the water pump and intake because that's what I done on my monte carlo. __________________ Chris GIT R DONE!!!!!! Check out all our rides, http://www.cardomain.com/id/benwa454

03-15-2008, 06:34 AM	#3
knightlife Dark Heart Motorsports Join Date: Apr 2007 Location: 29404 DKFX Posts: 683	Re: Heater Hoses 1.) no, it does not matter where they attach. regardless of how they are attatched, fluid will flow through the heater core and exit like normal, it has no check valves built into it 2.) instead of installing a bypass hose, I would personally suggest installing short 5/8 bolts to make a cleaner look (stanless steel, one for the intake, one for the water pump). __________________ How Deep Can YOU Bleed..? 1985 Chevy Blazer K5- 6.2 N/A, 400 turbo trans CUCV, 12v converted... a new chapter 2005 GMC Sierra Crew Cab 6.0 powwwaa!!! custom jumpseat install w/ captain seats, Hypertech tuner, MSD Blaster Coils, CB and twin antenna's, all electric interior, touch screen in dash. custom center console, with jump seat replacing original console. 1500 HD!

03-15-2008, 07:52 AM	#4
benoit454 Chris Join Date: Nov 2004 Location: Monaville, WV Posts: 3,737	Re: Heater Hoses Well the plugs I used were chrome and had a recessed allen head to it made by spectre, so they looked really good. __________________ Chris GIT R DONE!!!!!! Check out all our rides, http://www.cardomain.com/id/benwa454



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