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

Cobblemizer · 05-16-2007, 09:53 PM

I have a 1963 chevy truck with the deluxe heater. I am trying to get a replacement heater core and I keep getting asked if it's "fresh air" or "recurculated air"

**Captainfab** · 05-16-2007, 10:20 PM

If your heater core is inside the cab with only the hose nipples protruding thru the firewall, it's a recirculating heater. If the heater core is entirely in the engine compartment inside the heater box, with the fan below it, then it is a fresh air heater. Hope that helps.

Volvo_Matt · 05-17-2007, 01:34 AM

Good luck finding the correct heater core.....I've had mine rebuilt 2 times because I could not locate the proper heatercore brand new. Let me know what you find.

hewlett2002000 · 05-17-2007, 04:04 AM

LMC has them. heres a link.

http://www.lmctruck.com/icatalog/cbe/0064.asp

also i have a core from my 62 if your interested. just let me know.

Cobblemizer · 05-17-2007, 06:01 PM

Thanks for the info, The local autozone can order me the fresh air heater core.

rickf · 05-18-2007, 04:36 AM

I'm about to do a heater core too, mine started dumping water on the ground a few days back. From the sources (LMC, Napa) I see there are two heater core sizes. I have my box apart (it is the engine compartment "fresh air" style) and I see in the core mounting area the "outline" of where the larger core would fit. It would be about 30% more core. It seems to me that would give the heater some gusto, as it was, in mid winter the truck is cold.

Do you suppose it is worth the trouble?

Anyoneknow if the tubes for the hose mounts have the same bends?

Also, with that heater box out, I'm liking the clean look to the firewall. I've never seen the "deluxe recirculating" heater, do you suppose it would be a lot of trouble to convert to one?

Would someone post a pic (or email to me) of the deluxe heater?

hewlett2002000 · 05-18-2007, 09:51 AM

i would also like to convert to one. i like the clean firewall look also. but my luck had to be that both my trucks are the fresh airs!!! so i would also like to see some pics.

magooster · 05-19-2007, 03:50 PM

Mine has the "clean firewall" this is the only pic I've got, because the truck is in pieces now.

rickf · 05-20-2007, 01:12 AM

Thank you, but it is a picture of the heater inside that cab I was seeking.

I'm interested in seeing what it does to footwell space compared to the sleek little duct the "fresh air" version has.

rickf · 05-20-2007, 01:14 AM

If you've got the heater on the garage floor, a pic of that would do.

05-16-2007, 09:53 PM	#1
Cobblemizer Registered User Join Date: Apr 2007 Location: Northern Illinois Posts: 64	Which Heater core I have a 1963 chevy truck with the deluxe heater. I am trying to get a replacement heater core and I keep getting asked if it's "fresh air" or "recurculated air"

05-16-2007, 10:20 PM	#2
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,252	Re: Which Heater core If your heater core is inside the cab with only the hose nipples protruding thru the firewall, it's a recirculating heater. If the heater core is entirely in the engine compartment inside the heater box, with the fan below it, then it is a fresh air heater. Hope that helps.

05-17-2007, 01:34 AM	#3
Volvo_Matt Registered User Join Date: May 2007 Location: Hillsboro, OR Posts: 49	Re: Which Heater core Good luck finding the correct heater core.....I've had mine rebuilt 2 times because I could not locate the proper heatercore brand new. Let me know what you find.

05-17-2007, 04:04 AM	#4
hewlett2002000 Registered User Join Date: Dec 2006 Location: Cleveland, Tx Posts: 1,619	Re: Which Heater core LMC has them. heres a link. http://www.lmctruck.com/icatalog/cbe/0064.asp also i have a core from my 62 if your interested. just let me know. __________________ Respect: 1. A feeling of appreciative, often deferential regard; esteem. 2. The state of being regarded with honor or esteem. 3. Willingness to show consideration or appreciation. When you fail to show consideration to others values you are showing disrespect.

05-17-2007, 06:01 PM	#5
Cobblemizer Registered User Join Date: Apr 2007 Location: Northern Illinois Posts: 64	Re: Which Heater core Thanks for the info, The local autozone can order me the fresh air heater core.

05-18-2007, 04:36 AM	#6
rickf Registered User Join Date: Dec 2005 Location: Lake Oswego, OR Posts: 318	Re: Which Heater core I'm about to do a heater core too, mine started dumping water on the ground a few days back. From the sources (LMC, Napa) I see there are two heater core sizes. I have my box apart (it is the engine compartment "fresh air" style) and I see in the core mounting area the "outline" of where the larger core would fit. It would be about 30% more core. It seems to me that would give the heater some gusto, as it was, in mid winter the truck is cold. Do you suppose it is worth the trouble? Anyoneknow if the tubes for the hose mounts have the same bends? Also, with that heater box out, I'm liking the clean look to the firewall. I've never seen the "deluxe recirculating" heater, do you suppose it would be a lot of trouble to convert to one? Would someone post a pic (or email to me) of the deluxe heater?

05-18-2007, 09:51 AM	#7
hewlett2002000 Registered User Join Date: Dec 2006 Location: Cleveland, Tx Posts: 1,619	Re: Which Heater core i would also like to convert to one. i like the clean firewall look also. but my luck had to be that both my trucks are the fresh airs!!! so i would also like to see some pics. __________________ Respect: 1. A feeling of appreciative, often deferential regard; esteem. 2. The state of being regarded with honor or esteem. 3. Willingness to show consideration or appreciation. When you fail to show consideration to others values you are showing disrespect.

05-19-2007, 03:50 PM	#8
magooster '65 GMC Project Join Date: May 2005 Location: Abbotsford, BC Posts: 653	Re: Which Heater core Mine has the "clean firewall" this is the only pic I've got, because the truck is in pieces now. Attached Images __________________ Beauty is in the eye of the beer holder 1965 GMC project 1999 GMC Safari (daily driver) 2005 Scion XB (Wifey's car)

05-20-2007, 01:12 AM	#9
rickf Registered User Join Date: Dec 2005 Location: Lake Oswego, OR Posts: 318	Re: Which Heater core Thank you, but it is a picture of the heater inside that cab I was seeking. I'm interested in seeing what it does to footwell space compared to the sleek little duct the "fresh air" version has.

05-20-2007, 01:14 AM	#10
rickf Registered User Join Date: Dec 2005 Location: Lake Oswego, OR Posts: 318	Re: Which Heater core If you've got the heater on the garage floor, a pic of that would do.



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