Oil pump recommendation help
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Oil pump recommendation help

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    Default Oil pump recommendation help

    Hey guys i need some help. I have a mild build 454 with speed pro hyper pistons, comp cam extreme marine cam kit. The eninge is done being rebuilt and the bearing clearences are on the looser side. Right now I have a stock oil pan and a HV melling oil pump. Am I asking for trouble? Should I cahnge the pump or the pan?

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    Senior Member jetboatperformance's Avatar
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    Quote Originally Posted by dremmick View Post
    Hey guys i need some help. I have a mild build 454 with speed pro hyper pistons, comp cam extreme marine cam kit. The eninge is done being rebuilt and the bearing clearences are on the looser side. Right now I have a stock oil pan and a HV melling oil pump. Am I asking for trouble? Should I cahnge the pump or the pan?
    Less than desirable combo HV pump with stock pan, a large capacity pan should be in your plans to protect your investment for sure Tom

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    Senior Member 67weiman's Avatar
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    Imho, I would change the pan.

    Sent from my VS980 4G using Tapatalk

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    So keep the HV pump and run a bigger oil pan? Any recommendations on pans? would rather not spend $300 plus dollars on a pan

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    Senior Member 67weiman's Avatar
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    It's your motor, oil control is very important. Even with a standard pump, I would run a marine style pan. There are a few good pans out there, Armando or Stef are excellent pans. I haven't heard too many bad reviews of the canton.

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    Which oil pump do you recommend then a standard or HV oil pump?

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    Some guy obnoxious001's Avatar
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    Quote Originally Posted by dremmick View Post
    the bearing clearences are on the looser side.
    You posted a clue to your own answer here,, although you didn't indicate what the bearing clearances are. I have been using high volume pumps for many years on literally hundreds of big block Chevy marine engines.

    As others have mentioned, you do need to spend money on a decent pan to help protect your investment, even if you buy a good used one. What's a couple hundred more dollars compared to possibly destroying your fresh engine?

  10. #8
    Some guy obnoxious001's Avatar
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    This video from Melling shows flow difference for various bearing clearances, and makes an obvious statement for why someone would run a high volume pump. Remember that the high volume pump has 25% longer gears, so basically should be able to flow 25% more oil, and then look at the difference in oil flow for the various bearing clearances. This also visually demonstrates why different engines may use different weight oils.


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    If my memory serves me correctly I went with .00275" on the rods and .003" on the mains.

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    Quote Originally Posted by dremmick View Post
    If my memory serves me correctly I went with .00275" on the rods and .003" on the mains.
    OK, the video shows what .003" does for flow. I would definitely keep the high volume pump and get a better pan

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    LP-25.com Infomaniac's Avatar
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    if you are going to use a stock style pump I like the Melling Select 10770 pump. It comes with a nice hardened drive shaft. And get a good pan please.
    If For Some Reason I Do Something Worthy Of Recognition. God Provided The Ability And Deserves The Credit.


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    Senior Member TNYoungblood's Avatar
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    Hamburger makes a good pan for the money, got several friends that run them .. Might as well put a HV in it to be on the safe side
    WFLC The REAL #321 Kentucky Drag Boat Association 2016 NJBA 10.0 High Points Champ

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    BTC cardcarrying member SuperSoaker's Avatar
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    im running .0025 and .003 on my bbc I feel the bigger pan would be the better investment

    on another note for the guru's im running a 10778c pump and was told to leave the HP spring in it.

    what would be pressure diff. be from the HP and the LP spring ??? on my old motor the LP spring gave 70lbs cold and 55-60 hot

    can I still run my 80lb gauge ??

    not trying to hijack the thread just thinking this info mite help the OP as well

    Hamburger's 1498 Hamburger's Oil Pans - Free Shipping on All Orders @ JEGS
    Last edited by SuperSoaker; 04-21-2014 at 01:17 PM.

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    Senior Member 74Bonneville's Avatar
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    Quote Originally Posted by SuperSoaker View Post
    im running .0025 and .003 on my bbc I feel the bigger pan would be the better investment

    on another note for the guru's im running a 10778c pump and was told to leave the HP spring in it.

    what would be pressure diff. be from the HP and the LP spring ??? on my old motor the LP spring gave 70lbs cold and 55-60 hot

    can I still run my 80lb gauge ??

    not trying to hijack the thread just thinking this info mite help the OP as well

    Hamburger's 1498 Hamburger's Oil Pans - Free Shipping on All Orders @ JEGS
    I'm running this pan. I like it. Mellings HV oil pump as well. No issues.


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