Heater Hose Drivers Side of the block - The 1947 - Present Chevrolet & GMC Truck Message Board Network

mytruck1949 · 01-26-2015, 05:41 PM

49 chevy 3600. 216 motor. Has anyone seen where the heater hose splits by the water pump then dive down to the rear drivers side block? What is this for? just engine circulation?

Also anyone place a T in the hose and setup a temp gauge.

dwcsr · 01-26-2015, 06:40 PM

never seen that post up a picture

mytruck1949 · 01-27-2015, 09:03 AM

i will try to get some pics tonight. Thanks for the reply.

mr48chev · 01-27-2015, 11:59 AM

It's possible that someone might have put that setup on for coolant circulation at one time or as a pickup point where they thought the coolant might be hotter so as to get more heat out of the heater. Guys did strange things in the name of getting an engine to cool or get hotter coolant to the heater.

There is also the possibility that at one time it had a percolator type block heater plumbed into the fitting so the water would go to the bottom of the block and rise through the water jacket of the block to heat the engine. Since it is probably a local to you truck I see that as a real possibility.

dwcsr · 01-27-2015, 04:50 PM

I was thinking block heater as well but that hole over there isn't very big unless its into a freeze plug. I have seen some curious things on these trucks over the years so nothing would surprise me.

dinosaurdoctor · 02-06-2015, 10:16 PM

Could have been for an Lp Gas vaporizer which uses engine coolant to vaporize the gas so it can be mixed in the carb. Never know.

01-26-2015, 05:41 PM	#1
mytruck1949 Registered User Join Date: Dec 2014 Location: Bellevue Nebraska Posts: 39	Heater Hose Drivers Side of the block 49 chevy 3600. 216 motor. Has anyone seen where the heater hose splits by the water pump then dive down to the rear drivers side block? What is this for? just engine circulation? Also anyone place a T in the hose and setup a temp gauge.

01-26-2015, 06:40 PM	#2
dwcsr Hollister Road Co. Join Date: Apr 2005 Location: Houston Posts: 6,134	Re: Heater Hose Drivers Side of the block never seen that post up a picture

01-27-2015, 09:03 AM	#3
mytruck1949 Registered User Join Date: Dec 2014 Location: Bellevue Nebraska Posts: 39	Re: Heater Hose Drivers Side of the block i will try to get some pics tonight. Thanks for the reply.

01-27-2015, 11:59 AM	#4
mr48chev Registered User Join Date: Jul 2007 Location: Toppenish, WA Posts: 15,426	Re: Heater Hose Drivers Side of the block It's possible that someone might have put that setup on for coolant circulation at one time or as a pickup point where they thought the coolant might be hotter so as to get more heat out of the heater. Guys did strange things in the name of getting an engine to cool or get hotter coolant to the heater. There is also the possibility that at one time it had a percolator type block heater plumbed into the fitting so the water would go to the bottom of the block and rise through the water jacket of the block to heat the engine. Since it is probably a local to you truck I see that as a real possibility. __________________ Founding member of the too many projects, too little time and money club. My ongoing truck projects: 48 Chev 3100 that will run a 292 Six. 71 GMC 2500 that is getting a Cad 500 transplant. 77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around.

01-27-2015, 04:50 PM	#5
dwcsr Hollister Road Co. Join Date: Apr 2005 Location: Houston Posts: 6,134	Re: Heater Hose Drivers Side of the block I was thinking block heater as well but that hole over there isn't very big unless its into a freeze plug. I have seen some curious things on these trucks over the years so nothing would surprise me.

02-06-2015, 10:16 PM	#6
dinosaurdoctor Registered User Join Date: Feb 2015 Location: Albuquerque Posts: 10	Re: Heater Hose Drivers Side of the block Could have been for an Lp Gas vaporizer which uses engine coolant to vaporize the gas so it can be mixed in the carb. Never know.



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