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  1. #1
    Join Date
    Mar 2014
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    Porter Ranch, Ca.
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    2,110

    Default Radiator Guru needed, Harrison 4 core

    I have a 4 core Harrison radiator. It is not a stock radiator
    but Being a Harrison 4 core I want to find out where it's from.
    No original tag on it. radiator shop tag and a "Craig mfg" tag on the core.
    My guess is it's a re-core with Harrison tanks.
    FullSizeRender (16).jpgFullSizeRender (14).jpgFullSizeRender (15).jpgFullSizeRender (13).jpg
    $$$* 1967 Buick GS 400 *$$$

    Joe M.

    1967 GS 400 sport coupe, frame off restomod BBB
    1967 Skylark sport coupe 340 peg leg. (has been laid to rest)
    1987 K5 Blazer Silverado 4x4,
    new 4 bolt main 350 , 700r4. restored for hunting only
    1999 GMC Sierra, 6.0 The work truck
    2015 Camaro 2SS, black on black. 426hp stock

  2. #2
    Join Date
    May 2013
    Location
    Buick City,MI
    Posts
    584

    Default Re: Radiator Guru needed, Harrison 4 core

    Not sure about the OA,but dimensionally it looks like a 68-up Nova. I think 67-9 Camaro used the same size core,but had the mounts welded on the tanks. Should work good in any GM with the short top mounting plate with two cushions. A lot of GM 68 up have a dual pattern in the bottom of the core support for short or long cores.

  3. #3
    Join Date
    Mar 2014
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    Porter Ranch, Ca.
    Posts
    2,110

    Default Re: Radiator Guru needed, Harrison 4 core

    Top and bottom cushion mounts line up perfectly. but in a 67 skylark.
    $$$* 1967 Buick GS 400 *$$$

    Joe M.

    1967 GS 400 sport coupe, frame off restomod BBB
    1967 Skylark sport coupe 340 peg leg. (has been laid to rest)
    1987 K5 Blazer Silverado 4x4,
    new 4 bolt main 350 , 700r4. restored for hunting only
    1999 GMC Sierra, 6.0 The work truck
    2015 Camaro 2SS, black on black. 426hp stock

  4. #4
    Join Date
    May 2013
    Location
    Buick City,MI
    Posts
    584

    Default Re: Radiator Guru needed, Harrison 4 core

    65 was the first year for that style in a skylark(they came both ways in 65),but I believe those tanks to be newer. As far as Buick applications it should fit anything 65-7 skylark with that style top mounting plate except 401/425 engine. Should work very well in a 300,340,350 car.

  5. #5
    Join Date
    Mar 2014
    Location
    Porter Ranch, Ca.
    Posts
    2,110

    Default Re: Radiator Guru needed, Harrison 4 core

    Quote Originally Posted by schlepcar View Post
    65 was the first year for that style in a skylark(they came both ways in 65),but I believe those tanks to be newer. As far as Buick applications it should fit anything 65-7 skylark with that style top mounting plate except 401/425 engine. Should work very well in a 300,340,350 car.
    I'm running a big block 462. was going to run this radiator with full fan shroud and 7 blade clutch fan or wide two row aluminum with twin electric fans. what would be the better application and how well would the Harrison work with the big block ?
    $$$* 1967 Buick GS 400 *$$$

    Joe M.

    1967 GS 400 sport coupe, frame off restomod BBB
    1967 Skylark sport coupe 340 peg leg. (has been laid to rest)
    1987 K5 Blazer Silverado 4x4,
    new 4 bolt main 350 , 700r4. restored for hunting only
    1999 GMC Sierra, 6.0 The work truck
    2015 Camaro 2SS, black on black. 426hp stock

  6. #6
    Join Date
    May 2013
    Location
    Buick City,MI
    Posts
    584

    Default Re: Radiator Guru needed, Harrison 4 core

    Quote Originally Posted by Mr. Sunset View Post
    I'm running a big block 462. was going to run this radiator with full fan shroud and 7 blade clutch fan or wide two row aluminum with twin electric fans. what would be the better application and how well would the Harrison work with the big block ?

    It has always been a bit of trial and error on cooling,but I believe you will have troubles running a stock 455 with that setup.I just don't think you have enough capacity with the narrow core. It definitely won't hurt to try it if you have a good shroud,but cubes make horsepower and horsepower makes heat. I have the same size core and tank in my nailhead,but you are only talking about 400 cubes.

  7. #7
    Join Date
    Feb 2002
    Location
    austin,tx
    Posts
    3,080

    Default Re: Radiator Guru needed, Harrison 4 core

    Quote Originally Posted by Mr. Sunset View Post
    I have a 4 core Harrison radiator. It is not a stock radiator
    but Being a Harrison 4 core I want to find out where it's from.
    No original tag on it. radiator shop tag and a "Craig mfg" tag on the core.
    My guess is it's a re-core with Harrison tanks.
    FullSizeRender (16).jpgFullSizeRender (14).jpgFullSizeRender (15).jpgFullSizeRender (13).jpg
    Some preliminary "digging" here through an Assembly Manual shows the fill side tank (marked "OA") may be for a 1970 Olds Delta 88 car. The more horizontally oriented filler neck (compared to 71 and later factory radiators which had "angled" filler necks) also falls in place with it being a pre-71 rad.

    It can be used to build a radiator for a Skylark, etc if someone is wanting a 4 row setup. I just did this on a '70 Stage 1 car....used 4 row tanks from a big body Olds (88 or 98) and had a new core installed. JUST fits in the rad support, side-to-side clearance wise, on the car. Same radiator would NOT fit inside a '70 Cutlass/442 rad support.....the fill side tank on the one I built is slightly longer, compared to a factory 4 row rad for a Cutlass/442.

    The tanks could have had other applications as well but that's what I'm seeing in an Olds Assembly Manual.
    Patton Glade Austin, TX

 

 

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