Bbc # 14044807
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Bbc # 14044807

  1. #1
    Senior Member EVILFORCE's Avatar
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    Default Bbc # 14044807

    Does anyone know how far this can be bored. I have one that needs it. It is at 4.505 now. Again that number is # 14044807. Thanks. EVIL
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    Senior Member wizbang's Avatar
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    If that is the older tall deck Bowtie, I have one at 4.630 and no problems !

  4. #3
    Senior Member EVILFORCE's Avatar
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    it is a mk 4
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    Senior Member wizbang's Avatar
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    Yes, that is correct, MK IV. I use on in my ProStock engine.
    Never had any trouble with it.

  6. #5
    Senior Member EVILFORCE's Avatar
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    Just did some googleing. Found the factory recomendeds max of 4.560. Thanks guys.
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    Quote Originally Posted by EVILFORCE View Post
    Just did some googleing. Found the factory recomendeds max of 4.560. Thanks guys.
    Mine is bored @ 4.610 and the other is 4.600 and still has thick arse cyl walls 4.625 is no problem for these blocks

  8. #7
    classic hot boater Orange Peel's Avatar
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    Default block

    Looking to buy on of these engines, same numbers. Coming with a complete lot from
    A mud truck racer that pasted.. what is a good price range for this engine?
    It is complete with ls6 rect heads dominator carb ect... will need to be pulled down and checked.

    Also what is the most ci u can make from the block?
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  9. #8
    Foxwell Motorsports
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    I have a sonic test sheet form one of those blocks. Was a Keith Eickert 496... (4.31 bore) and the thinnest thrust surface bore thickness is .317". The average thickness is about .325 and there are a lot of places that are in the .340-.345 range, and as thick as .416". This was a pre-bowtie "marine" tall deck Mk IV.
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  10. #9
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    Quote Originally Posted by Orange Peel View Post
    Looking to buy on of these engines, same numbers. Coming with a complete lot from
    A mud truck racer that pasted.. what is a good price range for this engine?
    It is complete with ls6 rect heads dominator carb ect... will need to be pulled down and checked.

    Also what is the most ci u can make from the block?
    588 is the most I would go to be safe 4.5x 4.560 but I don't like to live on the edge.

  11. #10
    Senior Member rocket98's Avatar
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    Quote Originally Posted by wizbang View Post
    Yes, that is correct, MK IV. I use on in my ProStock engine.
    Never had any trouble with it.
    You must be running a 3.76 stroke. Just to be legal
    They older we get the faster we were

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