454 BBC build HELP
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454 BBC build HELP

  1. #1
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    Default 454 BBC build HELP

    I recently purchased a 1988 Caribbean by Hardine Marine that came with no motor. As far as I know the pump is the original berkely 12jg not sure of the impeller. I'm looking for information, books for building a 454 marine engine or advice. I plan to rebuild the pump so I'm open to changing impellers plus adding a hydraulic place diverter. Any information to help get this motor built and this boat in the water is greatly appreciated thanks

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  3. #2
    Blown, OHBA Member Wild Hair's Avatar
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    Before any one can point you in the right direction you might tell them what you expect out of the boat performance wise. posting a pic of the boat would help. there is a wealth of information buried in these fourms, take the time to search and research you build I know it will save you some money along the way. Good luck.

    I know a man on here thats only here for two reasons, to help the ones he can, and to piss the rest off. I would imagine he will chime in here shortly, a good man to listen to.
    Last edited by Wild Hair; 04-22-2012 at 07:10 PM.
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    Quote Originally Posted by Wild Hair View Post
    Before any one can point you in the right direction you might tell them what you expect out of the boat performance wise. posting a pic of the boat would help. there is a wealth of information buried in these fourms, take the time to search and research you build I know it will save you some money along the way. Good luck.

    I know a man on here thats only here for two reasons, to help the ones he can, and to piss the rest off. I would imagine he will chime in here shortly, a good man to listen to.
    Thanks for the reply I'd like the boat to do 80+ and still be a great cruiser for the lake some thing I can pull a tube or throw one hell of a rooster tail with.


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  6. #4
    Blown, OHBA Member Wild Hair's Avatar
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    Quote Originally Posted by 74Tahiti455 View Post
    Thanks for the reply I'd like the boat to do 80+ and still be a great cruiser for the lake some thing I can pull a tube or throw one hell of a rooster tail with.


    Then you need to keep the compression in the 9.5 to 10 to 1 range to keep it on pump gas, a little more if you have aluminum heads. Also remember cam choice can affect your compression as well.

    The clearance on the rods and mains needs to be a little more also, myself I like .0035 on the mains and .003 on the rods. That lets the oil flow a little better and helps to remove heat from the bearring surfaces. Remember most of this motors life is spent at or above 3000 RPM.

    80+ may be a little rough to get out of a pump gas cruiser, It will require a lot of test and tune on the motor, pump, and every thing else that touches the water.

    Spend a week or two on here and see what you can learn, you will find most answers to your questions, and the ones you dont,,,,, dont be afraid to ask. You will figure out who the gurus are by then and know where to get the best info.

    Good luck
    Last edited by Wild Hair; 04-23-2012 at 04:21 AM.
    OHBA GROWTH THROUGH PARTICIPATION
    Built Cheyenne Tuff, With Chevy Stuff.
    well the block is GM any ways


    GOD BLESS AMERICA AND KEEP HER SAFE

    LOCK N LOAD AMERICA, OUR 2nd AMENDMENT
    IS UNDER FIRE


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