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radiator upgrade

Discussion in '1936-Present Suburban' started by m4, Feb 13, 2005.

  1. m4

    m4 1/2 ton status

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    Hello all, I have a 1991 Sub 4x4 and would like to upgrade to a larger radiator. The factory temp gage shows 210 degrees in the winter time. This is with a 195 degree thermostat, new crate motor and new radiator. Is this normal? Doesn't give a warm fuzzy for summertime with A/C on. If a bigger "ie" wider radiator is installed I'm not sure the rubber supports would fit right? Any help would be great.
     
  2. Muddytazz

    Muddytazz 1 ton status

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    Sounds right to me....but if your really concerned about it, upgrade to a 4 core radiator.
     
  3. darkshadow

    darkshadow 1 ton status

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    yeah modien 4 core will frezze your ass
     
  4. flatline

    flatline 1/2 ton status

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    Go to RadiatorBarn.com


    I bought a 4 core for around $127 w/ free shipping

    works like a charm!
     
  5. woody9

    woody9 1/2 ton status

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    i snagged a 4 row for my 91 sub from radiator.com. seems it was less than $200/shipped, and mounting it was pretty easy. I needed the bigger rubber mounts for it, but they fit into the stock lower tray (if memory serves right).
    Was able to tweak the upper mount to accept it as well, but had to fab some extensions to get the fan shroud to still work.

    Pull a travel trailer with the sub, and it runs SUPER cool now!
     
  6. m4

    m4 1/2 ton status

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    Thanks, I tried a four core when I first started the radiator swap then went to the factory size after a saw it wouldn't bolt in. Now a year later I want the four core! Anybody using Jacobs/msd/mallory ignition stuff and do they make any difference. I have to get a cortizone shot in my neck tomorrow so no wrenching for a few days.


    thanks all
     
  7. SUBFAN

    SUBFAN 1/2 ton status

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    I installed the four core from my '77 P/Up....Some day I will work on moving the mounts and holding it in with something other than zip ties....


    I usually do not run a shroud, and have had no problems....
     

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