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Thread: Replacing Radiator, what is TOC and EOC?

  1. #1

    Join Date
    May 2004
    Location
    Granville, MA
    Posts
    9

    Replacing Radiator, what is TOC and EOC?

    I had a little mishap and need to purchase a new radiator.

    I was looking at buying one from napa, but they want $262!!!

    I noticed performance radiator has them for a little cheaper, would this be a better radiator?
    there are 3 radiator to choose from, with different optuions relating to EOC and TOC, i was wondering what that was.

    I would appreciate it if someone could clear this up for me

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  3. #2

    Join Date
    Nov 2003
    Location
    Sioux Falls, SD
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    probably oil cooler options for the tranny and the engine oil.

  4. #3

    Join Date
    Oct 2003
    Location
    Peoria, IL
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    1,060
    Correct.
    TOC = Transmisison Oil Cooler
    EOC = Engine Oil Cooler

    Marty
    '99 Z-28 - Weekend Driver
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  5. #4

    Join Date
    May 2004
    Location
    Granville, MA
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    9
    Thank You!!

    do i need any of these options?

    i have a seperate tranny cooler, and doesnt the z34 have a factory oil cooler?
    - AdamG
    1991 Lumina z34 - 3.4 dohc 4t60e - 208,000 miles and runs great
    1989 Cavalier z24 - 2.8

  6. #5

    Join Date
    May 2004
    Location
    Granville, MA
    Posts
    9
    W/O EOC; TOC ON PASSENGER SIDE 28 1/4 x 15 x 1

    Is this the recomended setup?
    - AdamG
    1991 Lumina z34 - 3.4 dohc 4t60e - 208,000 miles and runs great
    1989 Cavalier z24 - 2.8

  7. #6
    no oil goes through our rads (w-body to my knowlege), just coolant and tranny fluid, so Im gonna say that is correct

  8. #7
    I also have had coolong problems I bought a radiator from RADIATOR EXPERTS 1-800-252-0333 for 159.00 I have yet to install it though. I think I have fixed my cooling problems. I am going to built up with New Spangled fans.

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