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  1. #1
    Join Date
    Mar 2006
    Location
    Newton, NH
    Posts
    146

    Default Quality aftermarket heater core??

    Can anybody tell me where I can purchase a good quality aftermarket heater core. I am getting tired of replacing them.

    Thanks,
    Gary
    1970 Green GS 350
    1970 Brown GS 350
    1970 Blue GS 455 Conv.

  2. #2
    Join Date
    Aug 2004
    Posts
    2,031

    Default Re: Quality aftermarket heater core??

    I gave up on repro heater cores.

    My original Harrison heater core was rebuilt by R&R Radiator in Superior, Wisconsin.

    Used USA materials, and the workmanship is flawless.

    If you think the repro cores are equivilent, think again.

    The rebuilt unit weighs about 30% than a new repro unit.

  3. #3
    Join Date
    Mar 2006
    Location
    Newton, NH
    Posts
    146

    Default Re: Quality aftermarket heater core??

    Thats what I figured. Now I am stuck having to buy something. Does anybody have any suggustions on what to buy?? I won't hold you to it I promise!!

    Gary
    1970 Green GS 350
    1970 Brown GS 350
    1970 Blue GS 455 Conv.

  4. #4
    Join Date
    Apr 2011
    Location
    West Virginia
    Posts
    199

    Default Re: Quality aftermarket heater core??

    Quote Originally Posted by Gary Crossman View Post
    Thats what I figured. Now I am stuck having to buy something. Does anybody have any suggustions on what to buy?? I won't hold you to it I promise!!

    Gary
    Maybe you just had a run of bad luck with the repros. I bought one at the local Autozone for my Ford and it has lasted for years. Is there something about your engine or car (such as lots of vibration or super-high coolant temps) that is rough on heater cores?

    When I messed up the original core on my GS, I took it out and re-soldered it. Not a fun job, but it's holding up so far. If you have your original, you might try repairing it.

  5. #5
    Join Date
    Sep 2010
    Location
    silicon valley, ca
    Posts
    542

    Default Re: Quality aftermarket heater core??

    I got mine from CARS, www.oldbuickparts.com

    No problems so far with it.
    Len

    1967 Riviera
    ROA 5703

  6. #6
    Join Date
    Mar 2006
    Location
    Newton, NH
    Posts
    146

    Default Re: Quality aftermarket heater core??

    I think I just wasn't keeping up on the ph. Before I knew it I saw a big crusty area around the bottom hose where it connects to the front cover. When I took off the hose so I could clean it up I found half the aluminum nipple completely corroded away. Since then I got a huge leak in the heater core and just the other day I now have a leak in the radiator. I think I will just hang myself!!

    Gary
    1970 Green GS 350
    1970 Brown GS 350
    1970 Blue GS 455 Conv.

  7. #7
    Join Date
    Jan 2011
    Location
    Westhampton, MA, USA
    Posts
    910

    Cool Re: Quality aftermarket heater core??

    You can buy new ones through NAPA that are real good...

    I have never had any problems with NAPA heater cores...

    This one is for w/o ac, you can look through NAPA's webpage to look up the correct one, I wasn't sure what you have...

    http://napaonline.com/Catalog/Catalo...027_0237269038
    "Courage is being scared to death but saddling up anyway" John Wayne

    BCA # 45934 / Central New England Chapter, BCA / BPG #2313
    Buick GS Club of America # 2943 / Northeast GS/GN Club

    Now: 1970 Buick GSX Tribute Car, Stage 2 455, SP TB 400, 3.42 Positraction
    Before:
    1968 Buick GS California, Midnight Blue, 350 ST300, than a 1974 455 TB400
    1971 Buick GS, Lime Mist Green, 350 TB350
    1974 Buick Century Wagon, Dark Brown, 455 TB400
    2000 Buick Regal

  8. #8
    Join Date
    Apr 2011
    Location
    West Virginia
    Posts
    199

    Default Re: Quality aftermarket heater core??

    Quote Originally Posted by DavidC77 View Post
    You can buy new ones through NAPA that are real good...

    I have never had any problems with NAPA heater cores...

    This one is for w/o ac, you can look through NAPA's webpage to look up the correct one, I wasn't sure what you have...

    http://napaonline.com/Catalog/Catalo...027_0237269038
    Thanks, David. I want to order one of those for my 1969 GS 400 with no A/C. Is the part number you linked the right one for my car as well? I am having trouble using NAPA's car application software.

  9. #9
    Join Date
    Jan 2011
    Location
    Westhampton, MA, USA
    Posts
    910

    Cool Re: Quality aftermarket heater core??

    Quote Originally Posted by 69GS&M21 View Post
    Thanks, David. I want to order one of those for my 1969 GS 400 with no A/C. Is the part number you linked the right one for my car as well? I am having trouble using NAPA's car application software.
    Yes that would be the same, 68 -72 Skylark and 68 - 69 Special

    That should be the one for you, Part # 6603027


    http://napaonline.com/Catalog/Catalo...027_0237294952

    I had to look it up as a Skylark as they don't list the heater core for the GS400, parts places are funny like that sometimes, you have to look it up as the base vehicle...

    I worked at a parts place for a few years and I still remember some of the tricks
    "Courage is being scared to death but saddling up anyway" John Wayne

    BCA # 45934 / Central New England Chapter, BCA / BPG #2313
    Buick GS Club of America # 2943 / Northeast GS/GN Club

    Now: 1970 Buick GSX Tribute Car, Stage 2 455, SP TB 400, 3.42 Positraction
    Before:
    1968 Buick GS California, Midnight Blue, 350 ST300, than a 1974 455 TB400
    1971 Buick GS, Lime Mist Green, 350 TB350
    1974 Buick Century Wagon, Dark Brown, 455 TB400
    2000 Buick Regal

  10. #10
    Join Date
    Jan 2011
    Location
    Westhampton, MA, USA
    Posts
    910

    Cool Re: Quality aftermarket heater core??

    Quote Originally Posted by 69GS&M21 View Post
    Thanks, David. I want to order one of those for my 1969 GS 400 with no A/C. Is the part number you linked the right one for my car as well? I am having trouble using NAPA's car application software.
    Yes that would be the same, 68 -72 Skylark and 68 - 69 Special

    That should be the one for you, Part # 6603027


    http://napaonline.com/Catalog/Catalo...027_0237294952

    I had to look it up as a Skylark as they don't list the heater core for the GS400, parts places are funny like that sometimes, you have to look it up as the base vehicle...

    I worked at a parts place for a few years and I still remember some of the tricks
    "Courage is being scared to death but saddling up anyway" John Wayne

    BCA # 45934 / Central New England Chapter, BCA / BPG #2313
    Buick GS Club of America # 2943 / Northeast GS/GN Club

    Now: 1970 Buick GSX Tribute Car, Stage 2 455, SP TB 400, 3.42 Positraction
    Before:
    1968 Buick GS California, Midnight Blue, 350 ST300, than a 1974 455 TB400
    1971 Buick GS, Lime Mist Green, 350 TB350
    1974 Buick Century Wagon, Dark Brown, 455 TB400
    2000 Buick Regal

  11. #11
    Join Date
    Apr 2011
    Location
    West Virginia
    Posts
    199

    Default Re: Quality aftermarket heater core??

    Thanks again for that info, David. Now I will be able to drive without fear of the old core cracking and hot, greasy, smelly antifreeze leaking inside on to the new carpet.
    My name is Jeff, and I am in the running for "longest time to complete a restoration" (started around 1980).
    '69 GS400, 4-speed, a decent amount of Kenne-Bell in the engine.

  12. #12
    Join Date
    Jan 2011
    Location
    Westhampton, MA, USA
    Posts
    910

    Cool Re: Quality aftermarket heater core??

    Quote Originally Posted by 69GS&M21 View Post
    Thanks again for that info, David. Now I will be able to drive without fear of the old core cracking and hot, greasy, smelly antifreeze leaking inside on to the new carpet.
    Your welcome...

    I have to replace mine also, I've had it for a year or so now, I just don't feel like pulling the hood, fender and all that BS that go's with replacing it
    "Courage is being scared to death but saddling up anyway" John Wayne

    BCA # 45934 / Central New England Chapter, BCA / BPG #2313
    Buick GS Club of America # 2943 / Northeast GS/GN Club

    Now: 1970 Buick GSX Tribute Car, Stage 2 455, SP TB 400, 3.42 Positraction
    Before:
    1968 Buick GS California, Midnight Blue, 350 ST300, than a 1974 455 TB400
    1971 Buick GS, Lime Mist Green, 350 TB350
    1974 Buick Century Wagon, Dark Brown, 455 TB400
    2000 Buick Regal

  13. #13
    Join Date
    Aug 2009
    Location
    Topeka
    Posts
    205

    Cool Re: Quality aftermarket heater core??

    I bought mine at Advance Auto. The joints look weak where the old one was leaking so I re-solder all the joint. No leaks yet.
    Newman's first law: It is useless to put on your brakes when you're
    upside down. -- Paul Newman
    Build Pics are in the skylark 71 sub-album at photobucket.com/arden_dean

 

 

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