small block to big block radiator

Discussion in 'Tech Discussion' started by spanky55amg, Nov 25, 2018.

  1. spanky55amg

    spanky55amg I'll give u $5, a hardy handshake, & 5 fish sticks

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    I have purchased a big block replacement radiator. I was told that I needed to switch out the brackets, but I have the over-the-top bolt brackets. Looking at LMC, they dont have specific mounts for 81-87 454 brackets. LMC does show 81-87 support pads (9). Are the brackets the same?

    I know I will need the shroud (5) and panel (16). Image 3.png
     
  2. Frankenchevy

    Frankenchevy . Supporting Member

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    The support pads are the rubber bits. The other part necessary is like #11. Even though those listed are for 305 & 350, my diesel radiator had something similar on top.
     
  3. shiftpro

    shiftpro Full Access Member

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    And the support pads are listed, 0972.

    When having trouble finding your part, cross reference and just look at the applications vs the part #... it's easy to fill in the blanks
    when you see the same part # on several applications. Just the way I navigate through parts catalogs.
     
  4. shiftpro

    shiftpro Full Access Member

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    Funny I noticed the 400 shares the same big ass rad as the 454...
    What heat issues...?:Good or Bad:
     
  5. shiftpro

    shiftpro Full Access Member

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    Say "big ass rad' three times as fast as you can.
     
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  6. bucket

    bucket Super Moderator Staff Member

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    The top panel #16 doesn't use the little brackets, as the pads attach right to it.
     
  7. Craig 85

    Craig 85 Supporting Member Supporting Member

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    Here's what my 454 radiator set up looks like. Let me know if you need more pictures.

    IMG_1434.JPG IMG_1493.JPG
     
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  8. spanky55amg

    spanky55amg I'll give u $5, a hardy handshake, & 5 fish sticks

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    Ohhhhhhhhhhhhh

    Thanks @bucket and @Craig 85.

    I was assuming it was two different parts like the small blocks.... That makes sense.

    So just 16, shroud, and 4 pads.

    Thanks y'all.
     
  9. rpcraft

    rpcraft Full Access Member

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    Probably because the general knew about it's penchant for running hot.
     
  10. 82silverado01

    82silverado01 Junior Member

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    Glad I found this post. Radiator leaking so I’m replacing it. Since motor is changed from 305 to 350 I thought I should get heavy duty radiator. I think I may have same problem with my top brackets being about an inch too short. Did that part (16) from LMC work out for you? If you have 350, did you really need to change shroud too or would your old one have been ok?
     
  11. Honky Kong jr

    Honky Kong jr Super Sarcastic Man

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    What is so damn hard about just making your own parts? Unless your doing a Concourse restoration on it who gives a shit. I’m sure anything you make will be better then the Chinese re-pop shit your gonna buy. It isn’t rocket science it fucking trucks.
     
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  12. yevgenievich

    yevgenievich Full Access Member

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    I just made old brackets work on my swap. The hose is still a problem, the inlet on my radiator is a little larger than factory. In the second picture can see how much metal was added as it was still just tacked in place for a test fit.
    Other issue is the fan and shroud placement. Fan moved from ideal location to just barely inside the shroud, which is less than ideal but still okish.
    IMG_20181203_003328.jpg IMG_20181202_210847.jpg
     
  13. Honky Kong jr

    Honky Kong jr Super Sarcastic Man

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    BA1A9290-26AE-442A-912B-C4EC5A60DF82.jpeg 83035E4A-6C2B-402B-9223-453B5D401C63.jpeg

    EBB78C26-02F6-4703-9D26-DA7644F4DB80.jpeg
     
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  14. rpcraft

    rpcraft Full Access Member

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  15. Honky Kong jr

    Honky Kong jr Super Sarcastic Man

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    02 Crown Vic the radiator is for a big block 67 Chevelle
     

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