Heater core size???
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Lead Driver
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From: Near Los Angeles
Heater core size???
Hey guys. I need a bit of help with this. In the heater box I'm working on, the brass/copper core is 7.25"x6"x2", but it butts up against the sides of the restraints inside the box. Isn't there supposed to be an oem seal on either side? And, if so, what size core is supposed to be in this box? Is it the 6x6" size?
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I'm pretty sure that I was the first one to open this up on my '76.
I believe the arrow is pointing to a piece of foam similar to the top piece that holds the heater core in.
I hope this helps.
Hotshot
Joined: Feb 2004
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From: The Shenandoah Valley
Hey guys. I need a bit of help with this. In the heater box I'm working on, the brass/copper core is 7.25"x6"x2", but it butts up against the sides of the restraints inside the box. Isn't there supposed to be an oem seal on either side? And, if so, what size core is supposed to be in this box? Is it the 6x6" size?
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Lead Driver
Joined: Mar 2008
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From: Near Los Angeles
Looking at Rock Auto, 1977 FORD F-150 6.6L 400cid V8 Heater Core | RockAuto Looks like a few sizes, depending on if AC&heat or heat only, etc. Most of the choices show dimensions under the picture after you click on it.
Thanks for the help.
Hotshot
Joined: Feb 2004
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From: The Shenandoah Valley
More Information for AGILITY 9010045 is also close, also for AC.
Never mind, I seen it in another thread.
BTW, 75 f250 2x w/o air.
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From: S/W Missouri, Polk county
Some info from Number Dummy from a long time ago. For anyone looking for a brass/copper core Advanced Auto part # 398304 is the correct one. It is also the same core that fits early, 68'ish mustangs. Part number just in case it is needed in the future: For A/C 18476-1A, for non A/C 18476-2.
Also NAPA, but makes sure and ask are they aluminum or copper? Copper is what you want.
Heater core, high output heater C6OZ-18476-B
Antique Auto Supply, Arlington, TX (817) 275=2381
Wesley Obsolete Parts, Liberty, KY (606) 787-5293
Dennis Carpenter, Concord, NC also has 1, but they have it listed under C60Z-18476-B, the third digit is "zero" instead of the correct letter "O". (704) 786-8139
Additional C6OZ-18476-B heater core applications:
1966/70 Falcon w/o A/C / 1966/72 Fairlane/Torino w/o A/C / 1971/73 Mustang/Cougar w/o A/C
Heater core w/factory A/C or hi-low comfort vent system D3TZ-18476-A
Std Heater core D3TZ-18476-C
Also NAPA, but makes sure and ask are they aluminum or copper? Copper is what you want.
Heater core, high output heater C6OZ-18476-B
Antique Auto Supply, Arlington, TX (817) 275=2381
Wesley Obsolete Parts, Liberty, KY (606) 787-5293
Dennis Carpenter, Concord, NC also has 1, but they have it listed under C60Z-18476-B, the third digit is "zero" instead of the correct letter "O". (704) 786-8139
Additional C6OZ-18476-B heater core applications:
1966/70 Falcon w/o A/C / 1966/72 Fairlane/Torino w/o A/C / 1971/73 Mustang/Cougar w/o A/C
Heater core w/factory A/C or hi-low comfort vent system D3TZ-18476-A
Std Heater core D3TZ-18476-C
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Lead Driver
Joined: Mar 2008
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From: Near Los Angeles
Some info from Number Dummy from a long time ago. For anyone looking for a brass/copper core Advanced Auto part # 398304 is the correct one. It is also the same core that fits early, 68'ish mustangs. Part number just in case it is needed in the future: For A/C 18476-1A, for non A/C 18476-2.
Also NAPA, but makes sure and ask are they aluminum or copper? Copper is what you want.
Heater core, high output heater C6OZ-18476-B
Antique Auto Supply, Arlington, TX (817) 275=2381
Wesley Obsolete Parts, Liberty, KY (606) 787-5293
Dennis Carpenter, Concord, NC also has 1, but they have it listed under C60Z-18476-B, the third digit is "zero" instead of the correct letter "O". (704) 786-8139
Additional C6OZ-18476-B heater core applications:
1966/70 Falcon w/o A/C / 1966/72 Fairlane/Torino w/o A/C / 1971/73 Mustang/Cougar w/o A/C
Heater core w/factory A/C or hi-low comfort vent system D3TZ-18476-A
Std Heater core D3TZ-18476-C
Also NAPA, but makes sure and ask are they aluminum or copper? Copper is what you want.
Heater core, high output heater C6OZ-18476-B
Antique Auto Supply, Arlington, TX (817) 275=2381
Wesley Obsolete Parts, Liberty, KY (606) 787-5293
Dennis Carpenter, Concord, NC also has 1, but they have it listed under C60Z-18476-B, the third digit is "zero" instead of the correct letter "O". (704) 786-8139
Additional C6OZ-18476-B heater core applications:
1966/70 Falcon w/o A/C / 1966/72 Fairlane/Torino w/o A/C / 1971/73 Mustang/Cougar w/o A/C
Heater core w/factory A/C or hi-low comfort vent system D3TZ-18476-A
Std Heater core D3TZ-18476-C
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Lead Driver
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From: Near Los Angeles
Everyone says to get the cop/brass core instead of the aluminum model. Why is that? Is that to keep with the original style, or have people had bad experiences with aluminum cores? Please educate me regarding this.
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From: S/W Missouri, Polk county
Copper/brass version is more durable when it comes to handleing todays antifreeze. At least that is what I head at Howard Johnsons last night.
Copper brass heater cores are generally considered superior to aluminum ones due to their better heat transfer capabilities, durability, and resistance to corrosion. Copper's higher thermal conductivity allows for faster and more efficient heat transfer from the coolant to the air, resulting in better heating performance. Additionally, copper brass heater cores are often more durable and resistant to corrosion than aluminum, especially in harsh environments.
Copper brass heater cores are generally considered superior to aluminum ones due to their better heat transfer capabilities, durability, and resistance to corrosion. Copper's higher thermal conductivity allows for faster and more efficient heat transfer from the coolant to the air, resulting in better heating performance. Additionally, copper brass heater cores are often more durable and resistant to corrosion than aluminum, especially in harsh environments.
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Lead Driver
Joined: Mar 2008
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From: Near Los Angeles
Copper/brass version is more durable when it comes to handleing todays antifreeze. At least that is what I head at Howard Johnsons last night.
Copper brass heater cores are generally considered superior to aluminum ones due to their better heat transfer capabilities, durability, and resistance to corrosion. Copper's higher thermal conductivity allows for faster and more efficient heat transfer from the coolant to the air, resulting in better heating performance. Additionally, copper brass heater cores are often more durable and resistant to corrosion than aluminum, especially in harsh environments.
Copper brass heater cores are generally considered superior to aluminum ones due to their better heat transfer capabilities, durability, and resistance to corrosion. Copper's higher thermal conductivity allows for faster and more efficient heat transfer from the coolant to the air, resulting in better heating performance. Additionally, copper brass heater cores are often more durable and resistant to corrosion than aluminum, especially in harsh environments.
So, after a lot of searching and noting the sizes out there, It seems that a 73-77 w/o a/c takes a 6x6x2" core. The 78&79 take a 6x7.75x2" core. And this is only copper/brass I'm talking about. It seems that once you get into aluminum cores the sizes get wonky, some having only a 1.25" thick core!
Today I took my existing core, copp/brss, that I bought used, and pressure tested it with two plugs in the hose bibs and a can of spray in one plug with the core submerged. No leaks.
It pressurized it so well that it blew one of the plugs out and I got sprayed on my face.
I also ordered a new fan and when it came it had a large hole in the side of the case, and small holes around the case where the shaft sticks out. The oem moter had no vent? holes, so I sent it back and ordered one on RockAuto that is made in Canada w/o the holes.
I should mention that the foam pipe insulation, cut in strips with a razor blade, worked well to pack the sides of the core. I sprayed on some spray adhesive, let it dry a bit, and pushed the core into place. I used flat 2" wide foam on top and bottom, and had to pack well around the inlet pipes. I found foil tape to seal where the body meets the defrost assembly.
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Lead Driver
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From: Near Los Angeles
NPD core size
I heard back from NPD. Part #F-18476-4A has a 6x6 core, but the over-all size is 6X7.5x2", and that is copper brass.
A kit with the fan motor to box gasket and seal, the seal around the core (top, bottom and sides), the gasket for fresh air intake on the right, the gasket/seal for defrost assembly to box, and the flapper replacement rubbers would be a much needed kit for our trucks. It is a bit painful to reassemble my heater box with 50 year old flappers. But, you know, those 50 year old flappers will probably out last some new made in china crappy flappers anyway.
A kit with the fan motor to box gasket and seal, the seal around the core (top, bottom and sides), the gasket for fresh air intake on the right, the gasket/seal for defrost assembly to box, and the flapper replacement rubbers would be a much needed kit for our trucks. It is a bit painful to reassemble my heater box with 50 year old flappers. But, you know, those 50 year old flappers will probably out last some new made in china crappy flappers anyway.
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