Block drain question BBC
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Block drain question BBC

  1. #1
    AKA OhOneWS6 Last Mohican's Avatar
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    Default Block drain question BBC

    Friend of mine recently bought a Mako with a 454 build by Pinkston Energetics. It has a piece of braided hose between the left and right block drains. No tee, no valve, nothing but a line connection the two side. What purpose would this serve?

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    Senior Member GT Jets's Avatar
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    Quote Originally Posted by Last Mohican View Post
    Friend of mine recently bought a Mako with a 454 build by Pinkston Energetics. It has a piece of braided hose between the left and right block drains. No tee, no valve, nothing but a line connection the two side. What purpose would this serve?

    The only thing I can even come up with would be to equalize both sides of the bock pressure wise....

    I dont see a bunch of value though...

    GT
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    Quote Originally Posted by Quickjet View Post
    Put a 300 on the back of it, Flywheel it and a nosecone. $15,000 later you'll have a 65 mph pile of shit......

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    Senior Member earlbrown's Avatar
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    I would guess a sediment trap or the installer wanted people to think he knew something they didn't.

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  6. #4
    Horsepower sells Engines lefty's pride's Avatar
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    im going to agree with earl brown, i havent seen it before either, maybe an equlizer, maybe tom would know
    "Horsepower sells Engines but torque wins races."
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    Senior Member jetboatperformance's Avatar
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    Kind of stands to reason that the function is prolly to do like whats already been said above (equalizer) , actually kind of an interesting "concept"

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    Senior Member IRRebel's Avatar
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    Quote Originally Posted by jetboatperformance View Post
    Kind of stands to reason that the function is prolly to do like whats already been said above (equalizer) , actually kind of an interesting "concept"
    I kinda had thoughts like that years back, but thought better of it because the banks on v style engines are already balanced, pressure wise, through the intake manifold.

    However, on most engines, this crossover is only on the front of the intake manifold. I have to agree here, interesting concept, and might have some actual merit to it. Cylinder to cylinder temps might have a real benefit from this.

    Ray

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    Senior Member GT Jets's Avatar
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    Quote Originally Posted by IRRebel View Post
    I kinda had thoughts like that years back, but thought better of it because the banks on v style engines are already balanced, pressure wise, through the intake manifold.

    However, on most engines, this crossover is only on the front of the intake manifold. I have to agree here, interesting concept, and might have some actual merit to it. Cylinder to cylinder temps might have a real benefit from this.

    Ray
    Just throwing this out there because I've never heard of it done this way before, but the crossover in the manifold on a BBC (and others) is "after" the flow restrictors in the head gasket....

    I am unsure of any real benefit but at the same time don't think it could hurt, now if it had a tee in it, and being as small as it is (block drains are only 1/4" NPT) by installing a small dump line overboard could sure eliminate some sand deposit problems.

    I have used the same holes, but drilled to 1/2" for the water "in" on a jet before, actually with great results....

    GT
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    Quote Originally Posted by Quickjet View Post
    Put a 300 on the back of it, Flywheel it and a nosecone. $15,000 later you'll have a 65 mph pile of shit......

  10. #8
    AKA OhOneWS6 Last Mohican's Avatar
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    The hose was completely blocked with sediment. He cleaned it out and I think he is going to put it back. I didn't ask how big the line was.

    Chad, Sign up and post up. How big is that line?

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