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Radiators for 6.2??

Discussion in '1982-Present GM Diesel' started by JHG, Aug 5, 2002.

  1. JHG

    JHG 1/2 ton status

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    I have to replace my radiator on my K5 (with 350). The radiator has only 2 rows.

    Because I have been considering swapping in a 6.2 diesel I was wondering how many rows radiator I would need for that engine.

    Will 3 row radiator be enough?

    Thanks,

    Jon H.
     
  2. arveetek

    arveetek 1/2 ton status

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    The small 6.2L radiators are three row, the heavy duty are four row. Both are also a lot wider.

    I would go with a four row myself. They are more rigid and don't flex as easily as the three row which can make them leak.

    Then you'll have all the cooling you'll ever need.

    Casey
     
  3. KRUM

    KRUM 1/2 ton status

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    what did the the 3 and 4 row radiatorcome out of? /forums/images/icons/confused.gif
     
  4. arveetek

    arveetek 1/2 ton status

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    All 6.2L diesel equipped trucks come with at least a 3 core radiator. Most 1/2 ton Suburbans, pickups and Blazers have 3 cores. The heavy duty (20 and 30 series) trucks come with a 4 core. The tanks are big enough that you can actually install a 5 core if you wanted to!

    The 3 core radiators flex and crack easily.

    Casey
     
  5. KRUM

    KRUM 1/2 ton status

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    so a cucv with a 6.2 would have a 4 core?
    thanks,
    KRUM
     
  6. arveetek

    arveetek 1/2 ton status

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    Yeah, it should.

    Casey
     
  7. BadDog

    BadDog SOL Staff Member Super Moderator Author

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    Mine did.
     
  8. kickinasphalt383

    kickinasphalt383 1/2 ton status

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    who makes a 5 core and how much? thanks
     
  9. arveetek

    arveetek 1/2 ton status

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    My local radiator shop quoted me about $250 or so to have a 5 core section mated to my original end tanks. If my current 4 core ever develops a leak or needs to be rodded out, I'll install a 5 core then. For that price, you can't go wrong!

    Check with your local rad shop and see what they say.

    Casey
     
  10. K10ANDYKHAMNIC

    K10ANDYKHAMNIC 1/2 ton status

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    there is one thing about going to so thick of a radiator , it may not actually cool good because of the thickness , this was told to me by a man who has raced stock cars , been a high school shop teacher for a loong time ,and had a radiator business for a lot of years also . so im not talking out my neck /forums/images/icons/smile.gif
     
  11. AzzKicker

    AzzKicker 1/2 ton status

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    that would seem realistic to me being that the way they should work is for cool to flow through and hot to leave. If its too think, you dont get enough hot leaving than you should so you just make it hotter.
     

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