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Broken Mercruiser 454 Alpha engine - square port - 330hp

  1. #1
    Changes come butcher bergs's Avatar
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    Broken Mercruiser 454 Alpha engine - square port - 330hp


    Location: Near Concord, NH



    Block is good, heads are good.

    Port head gasket let go and water mixed with the oil. There were women and children onboard at the time so I ran it til it popped. I believe a con rod snapped. The engine was at low RPM (1500-1800 ish) when it took its final breath. Poked a hole in the steel oil pan but no other damage to the block.

    I can deliver for a fee or you are more than welcome to pick up from my house. I will help load if need be.

    Engine is clean, all hardware is in great condition. It is my belief the builder did not torque the heads properly.

    Excellent candidate for a long block rebuild or sell the heads and pocket $500.

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    Last edited by butcher bergs; 10-29-17 at 05:23 PM.

  2. #2
    Senior Member MHenry600's Avatar
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    Re: Broken Mercruiser 454 Alpha engine - square port - 330hp

    Hmmmm.... where are you, again? Somewhere in NH, right?

    I have an idea, and this might fit the bill nicely. I assume your holding on to the outdrive, though right?

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  3. #3
    Lifer jasnmar's Avatar
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    Re: Broken Mercruiser 454 Alpha engine - square port - 330hp

    Yeah. Unless something has changed Bergs is about 20 minutes east of you.

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  4. #4
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    Re: Broken Mercruiser 454 Alpha engine - square port - 330hp

    Quote Originally Posted by MHenry600 View Post
    Hmmmm.... where are you, again? Somewhere in NH, right?

    I have an idea, and this might fit the bill nicely. I assume your holding on to the outdrive, though right?
    This is, for the most part, block and heads only. I can throw in the power steering pump and bracket if you need it. I was otherwise going to keep it as a spare. Have a non-marine starter as well.

    No outdrive or transom assembly.


    And, yes, as Jason has indicated, I am local to you.

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  5. #5
    Senior Member MHenry600's Avatar
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    Re: Broken Mercruiser 454 Alpha engine - square port - 330hp

    Hey, sorry the power outage has had my attention elsewhere.

    I'm actually up in Moultonborough now as of this summer (need to update my info), but I am pretty interested. I'm thinking of picking up a bare hull, and rebuilding this to go in it.

    If you're around Sunday I should have time to make the trip down to check it out. Do you have a hoist to get it in the back of a 1/2 ton pickup, or should I plan on bringing one?

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  6. #6
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    Re: Broken Mercruiser 454 Alpha engine - square port - 330hp

    This might already be spoken for. Going to get in touch with the person today and see what scheduling looks like.

    If it doesn't work out, I can absolutely do Sunday. I'll keep this thread updated.


    No worries on getting it loaded. I have machines and hoists available. Just bring a tire or two so we can tuck the oil pan into it.

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  7. #7
    Senior Member MHenry600's Avatar
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    Re: Broken Mercruiser 454 Alpha engine - square port - 330hp

    Ok, hopefully they back out I guess. I'll definitely take it Sunday, if they do.

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  8. #8
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    Re: Broken Mercruiser 454 Alpha engine - square port - 330hp

    This thing is gone.

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