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Which melling oil pump?10% or 18% more pressure than stock

This is a discussion on Which melling oil pump?10% or 18% more pressure than stock within the Internal Engine forums, part of the LSx Technical Help Section category; I was just wondering which higher pressure oil pump I should use.Both of these have either 10% or 18% over ...

  1. #1
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    1999 Ram Air Trans Am

    Which melling oil pump?10% or 18% more pressure than stock

    I was just wondering which higher pressure oil pump I should use.Both of these have either 10% or 18% over stock LS1.Doing a cam change and i heard I should change oil pump.Thanks

  2. #2
    Member BlackSS1's Avatar
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    Black
    2001 Camaro SS Vert

    More is more with oil pressure...go 18% unless it is cost prohibitive. I used a ported LS6 pump with great results. You should definately replace during the swap since you have to remove it to change the timing chain anyways.

  3. #3
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    SILVER
    2002 TRANS AM WS6

    you could as so just port the stock ls1 pump for better flow as well. that will save $

  4. #4
    Spaz is My Mentor SMWS6TA's Avatar
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    Navy Blue Metallic
    98 T/A w/a little mods...

    98 & 99 oil pumps were know to have issues with the LS1.

    Recommend getting at least LS6 pump. Port & polish is better, Melling is best.

  5. #5
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    2001 Z28 Camaro

    just picked up a ls6 oil pump up for my 6.0l build from Texas speed its right for the $$

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