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Aftermarket Performance Radiators????

Discussion in 'Engine & Drivetrain' started by Foggy, Mar 26, 2020.

  1. Foggy

    Foggy Full Access Member

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    The only drop in radiator I can find for my Denali is a Mishimoto GMT-99 .
    It looks like a really nice piece and has provisions for my trans oil cooling and
    engine oil cooling too.
    The Only prob I have with it is it's price $530 plus tax .. Yikes !!

    Anyone find a good replacement radiator that's better than stock???

    I'm adding some power and I tow, so I want OEM cooling PLUS

    Thanks
     
  2. ls1frc

    ls1frc Member

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    I was in the same predicament as you and I am unaware of any other than what you mentioned.

    The A/C delco unit alone was over $400 with the cooling provisions, so the Mishimoto was a no brainer at that point for my cracked radiator replacement.

    You definitely will get what you pay for. It does a good job keeping the trans nice and cool, you'll make the money back just by getting more mileage out of your trans.
     
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  3. gat0r

    gat0r Full Access Member

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    if its like the '15+ model
    you will almost double your cooling capacity as well.
    & no plastic end caps
     
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  4. kbuskill

    kbuskill ***CAUTION*** I do my own stunts!

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    This is one that I was looking at... I have k ow personal experience with it though so take it for what its worth.

    Radiator 2012 Chevrolet Tahoe Lt - 5.3 Liter V8 325Cid Radiator All Aluminum 3 Row Desert Cooler With 2 Coolers, 3 | Radiator Express
    https://www.radiatorexpress.com/product/radiator/chevrolet/2012/tahoe/lt/53l-v8/222920/c501366#

    This is another one they carry...
    Radiator 2012 Chevrolet Tahoe Lt - 5.3 Liter V8 325Cid Radiator Wide Tube, 34 Inch Core, 2 Coolers | Radiator Express
    https://www.radiatorexpress.com/pro...oe/lt/53l-v8/224117/c501366#vehiclefitmenttab

    It has wider tubes and they claim it cools better than a 3 row radiator.
     
    Last edited: Mar 26, 2020
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  5. Foggy

    Foggy Full Access Member

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    So I looked at the cold case radiators mentioned and did some online research.
    Thank you for the suggestion. They run about $400 and have very mixed reviews as
    far as fitment and quality..
    So for the money, I'd prob save some headaches and sped the $530 ish for the
    mishimoto Radiator... That's what I'm kind of thinking.. Unless I just punt and
    put in a oem repl rad..
    I've created a new post on my Cooling Fan Situation.. Apparently mine are not right
     
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  6. ls1frc

    ls1frc Member

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    The factory replacement is already over $400 with the cooling provisions. Buy once, cry once :)

    https://www.amazon.com/ACDelco-2174...f=sr_1_1?keywords=21742&qid=1585318107&sr=8-1


    The other factory replacement on amazon did not have cooling provisions when I bought it thinking it was the right one.

    https://www.amazon.com/ACDelco-2165...f=sr_1_1?keywords=21650&qid=1585318186&sr=8-1
     
  7. Dantheman1540

    Dantheman1540 Full Access Member

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    I have the Mishimoto radiator and really like it! Fit and finish was spot on and my temps stay in the 170s at all times with a 160* Thermostat.
    With the factory radiator and thermostat it usually stayed around 200-210*
     
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  8. Foggy

    Foggy Full Access Member

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    I think I'll bite the bullet and get the Mishimoto GMT-99
    I don't really trust the aftermarket $200 ish replacements.. And
    for the extra $130 over an OEM Delco, I may as well have what
    I really want.
    Thanks for the help & advice !!
     

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