Cubic Inch Chart : BBF sizes
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Cubic Inch Chart : BBF sizes

  1. #1
    Resident Ford Nut Sleeper CP's Avatar
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    Default Cubic Inch Chart : BBF sizes

    I did one of these before, I just got around to adding a few more lines to fill in some gaps. It might come in handy for a some of the Ford guys :




    S CP


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    Senior Member ol guy's Avatar
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    Its' real easy to figure c.u. --- 8 x .7854 x Bore x bore x stroke = cubic inches. It doesn't take a chart! M

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    Quote Originally Posted by ol guy View Post
    Its' real easy to figure c.u. --- 8 x .7854 x Bore x bore x stroke = cubic inches. It doesn't take a chart! M
    Its faster to read the chart than to find a calculator that works.
    Quote Originally Posted by gn7 View Post
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    Had one for Chevy but thanks for the Ford info... never know when might need it.

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    gn7
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    Ole guy, the charts are nice because it allows you to see all the "somewhat" standard combos at a glance. Ever notice the number of combos with the same CID. The formula is great for determining a specific combo size. But when you looking for different combos of the same size, it makes it a little easier. Someday I may post all the possible CIDs with 2 deck chevy deck heights 3 cranks, and 3 rod lengths, and 3 piston CHs. Its pretty amzing the different engines sizes and compression combos. Its a tad more than 3 combos. If your stuck thinking a 470 is automatically a 4.320 X 4.00, then the chart is of no use to you.

    I just use the chart this weekend to determine all the possible combos that are available for a 514. Long story why I needed this info, but there are five on that chart alone. Add in all the combos that are between 510 and 515, and it gets even bigger.

    Some people, Ole Guy, actually use charts like this to help decide possible combos. People who think outside the box.



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    Last edited by gn7; 12-02-2010 at 07:52 PM.

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    Quote Originally Posted by gn7 View Post

    Some people, Ole Guy, actually use charts like this to help decide possible combos. People who think outside the box.
    Some people use dyno's too

    Quote Originally Posted by 78COLE View Post
    Had one for Chevy but thanks for the Ford info... never know when might need it.
    I forgot the stock 427 Ford size of 4.23. I might add a few more. There are a few odd-ball sizes on the chart but it's now possible to have a pistons made in any size and ring packs can be file fitted to fit damn near any thing.

    S CP
    Last edited by Sleeper CP; 12-02-2010 at 09:08 PM.

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    gn7
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    And don't forget the 4.320 bore that is very common with the BBC boys now, and always was common with the MoPar geeks



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    Quote Originally Posted by gn7 View Post
    And don't forget the 4.320 bore that is very common with the BBC boys now, and always was common with the MoPar geeks

    Thanks...you have a couple more common sizes that might be worth adding ?

    S CP

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    Quote Originally Posted by ol guy View Post
    Its' real easy to figure c.u. --- 8 x .7854 x Bore x bore x stroke = cubic inches. It doesn't take a chart! M
    maybe that's why he included the same formula at the bottom of the chart

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    Quote Originally Posted by 71hallett View Post
    Its faster to read the chart than to find a calculator that works.
    I don't know if that would work for you up there in the great white north, you guys do every thing screwy up there. Besides, the batteries are probably frozen in the calculator.
    Last edited by jorndy; 12-03-2010 at 11:11 AM.

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    Quote Originally Posted by bp298 View Post
    maybe that's why he included the same formula at the bottom of the chart
    You mean that teeny tiny little print at the bottom? You expected him to read that? He was too busy trashing the post before he got that far.

    Quote Originally Posted by jorndy View Post
    I don't know if that would work for you up there in the great white north, you guys do every thing screwy up there. Besides, the batteries are probably frozen in the calculator.
    They have batteries there? And they work in sub-zero weather?
    Who knew. Paul has no need for batteries. He is way more hi tech than that.





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    Quote Originally Posted by gn7 View Post
    You mean that teeny tiny little print at the bottom? You expected him to read that? He was too busy trashing the post before he got that far.
    font size on the chart looks the same as the font size in the post... but i guess if ya didn't look, you wouldn't see it...

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    Quote Originally Posted by bp298 View Post
    maybe that's why he included the same formula at the bottom of the chart
    Quote Originally Posted by gn7 View Post
    You mean that teeny tiny little print at the bottom? You expected him to read that? He was too busy trashing the post before he got that far.

    Oh Mark is harmless he just feels he owes me a few

    GN, I'm like you I need a chart in front of me so I can see the possible combination, but then again I need a dyno to tune an engine too.

    I'll add those other combo's to the chart later and re-post.

    S CP

    "Dark Sarcasm"
    Going fast is only half the fun ... what you make go
    fast is the other half.
    " A Government big enough to give you everything you want is big enough to take away everything you have"

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