Ideal BBC Build and why ?
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Ideal BBC Build and why ?

  1. #1
    Urban Cougar Trapper Gopher711's Avatar
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    Default Ideal BBC Build and why ?

    Looks like Im torn between rebuilding my 454 or going tall deck ? from scratch ... for the guys that build engines for a living what is the Ideal CI with rod/Stroke ratio and reliability ? 461 ? 496 ? 540 ? 528 ? 555 ? are afew I was thinking of ...What would YOU recommend ???
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    Bostick Racing Engines six-oh-nine's Avatar
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    Quote Originally Posted by Gopher711 View Post
    Looks like Im torn between rebuilding my 454 or going tall deck ? from scratch ... for the guys that build engines for a living what is the Ideal CI with rod/Stroke ratio and reliability ? 461 ? 496 ? 540 ? 528 ? 555 ? are afew I was thinking of ...What would YOU recommend ???
    Depends on what "tall deck" you have to work with... and what sort of build your going for.


    Personally, I do like the 555 combo with a tall deck and the 6.800 rod... but depending on what you got to work with, and what you're trying to do, the 496 with a 6.385 rod ain't bad either.
    Last edited by six-oh-nine; 12-27-2013 at 08:59 AM.
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    Urban Cougar Trapper Gopher711's Avatar
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    Dart 10.2 block if I go that route
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    gn7
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    4.600 X 4.750 in a Dart 10.6 block, 60MM cam and .903 lifters.
    After that things just get stupid expensive.



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    Distinguished Member David 519's Avatar
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    You'll get lots of opinions based on personal preference but my favorite BB build is a tall deck 565 (4.6 bore x 4.25 stroke) or a 582 (4.6 x 4.375). Easy to get 950-1000 HP NA with fairly conventional head and will live pretty well in a bracket/lake hot rod. Also, fairly common build so most parts are available off the shelf and reasonable $$ wise.
    If you want the absolute most HP for the $$$, nothing beats blown alcohol. Any 500" plus combo will make 1500 HP with basic conventional head stuff and mild cam/compression. Pay attention to parts, a bit more compression/cam and 1800+ HP is pretty easy if the tuner knows what's up....IMHO Neither is what you'd call "lake friendly"
    Quote Originally Posted by gn7 View Post
    ....... David 519 is 100% correct........

    Quote Originally Posted by fuelinmyveins82 View Post
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    Distinguished Member David 519's Avatar
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    Quote Originally Posted by gn7 View Post
    4.600 X 4.750 in a Dart 10.6 block, 60MM cam and .903 lifters.
    After that things just get stupid expensive.
    Our wallets are definitely different sized. I say the same thing about the 10.2 block with standard cam bore and .842 lifters
    In Steve's (Roaddogg) Rayson, I think the 632 he built is perfect since it's basically a fast cruiser. In a drag race style motor, anything 4.5" stroke and beyond gets to be a challenge (read that expensive in my terms anyway) to get them to RPM well enough. Seems like the longer stroke motors use up cylinder head at a pretty low RPM which can be fine in some situations, but not so much in a drag race flat/hydro deal.... I guess it's all in what the build needs...
    Quote Originally Posted by gn7 View Post
    ....... David 519 is 100% correct........

    Quote Originally Posted by fuelinmyveins82 View Post
    .....I think people forget that racing is supposed to fun. Losing shouldn't be discouraging it should motivate you work on your pile to make it faster.....

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    Urban Cougar Trapper Gopher711's Avatar
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    Priced out parts for 565 build ..looking at about $6500 without cam & lifters for rotating assy, block , and ring set Dart Block ,Howards Crank ,Oliver Rods and Ross pistons , ......454 parts using my block will be about $4500 less machine work to bore and prep block again really torn to go tall deck but then looking at new pan , blower intake, pushrods ..yaddayaddayadda
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    gn7
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    Quote Originally Posted by David 519 View Post
    Our wallets are definitely different sized. I say the same thing about the 10.2 block with standard cam bore and .842 lifters
    In Steve's (Roaddogg) Rayson, I think the 632 he built is perfect since it's basically a fast cruiser. In a drag race style motor, anything 4.5" stroke and beyond gets to be a challenge (read that expensive in my terms anyway) to get them to RPM well enough. Seems like the longer stroke motors use up cylinder head at a pretty low RPM which can be fine in some situations, but not so much in a drag race flat/hydro deal.... I guess it's all in what the build needs...
    I didn't say it wasn't expensive, it just gets $tupid after that.

    I would tend to draw line at 4.375 stroke on a drag deal. I am not a fan of non billet cranks over 4.5, and even then it better be a DAMN GOOD forging.



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    Distinguished Member David 519's Avatar
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    Quote Originally Posted by Gopher711 View Post
    Priced out parts for 565 build ..looking at about $6500 without cam & lifters for rotating assy, block , and ring set Dart Block ,Howards Crank ,Oliver Rods and Ross pistons , ......454 parts using my block will be about $4500 less machine work to bore and prep block again really torn to go tall deck but then looking at new pan , blower intake, pushrods ..yaddayaddayadda
    If it's a used (seasoned ) Chevy block (not a Bowtie) personally I wouldn't use it. If you do use the block, plan on helicoiling/keensert every head stud hole now while it's apart. If not, it will strip eventually and likely when you least want it to.....
    Quote Originally Posted by gn7 View Post
    ....... David 519 is 100% correct........

    Quote Originally Posted by fuelinmyveins82 View Post
    .....I think people forget that racing is supposed to fun. Losing shouldn't be discouraging it should motivate you work on your pile to make it faster.....

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    Urban Cougar Trapper Gopher711's Avatar
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    Standard run of the mill GMC 4 bolt block. I'm gonna be in $1500 crank , 1300 rods , 800 ish on pistons hate for the block to be weak link
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    steelcomp was here
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    I prefer short deck builds unless the stroke absolutely demands a tall deck. Short deck builds are lighter, have shorter pushrods and it;s easier to get the runners of a TR under the carbs. A naturally aspirated 582 (4.6 bore x 4.375 stroke) with the right top end will make 1200 hp. at a reasonable rpm. I don't have a problem with a 4.375 in a short deck but I think that's the max.
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    Quote Originally Posted by David 519 View Post
    Our wallets are definitely different sized. I say the same thing about the 10.2 block with standard cam bore and .842 lifters
    In Steve's (Roaddogg) Rayson, I think the 632 he built is perfect since it's basically a fast cruiser. In a drag race style motor, anything 4.5" stroke and beyond gets to be a challenge (read that expensive in my terms anyway) to get them to RPM well enough. Seems like the longer stroke motors use up cylinder head at a pretty low RPM which can be fine in some situations, but not so much in a drag race flat/hydro deal.... I guess it's all in what the build needs...
    I don't understand what you mean "Seems like the longer stroke motors use up cylinder head at a pretty low RPM". Could you explain?

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    steelcomp was here
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    Quote Originally Posted by jimsplace View Post
    I don't understand what you mean "Seems like the longer stroke motors use up cylinder head at a pretty low RPM". Could you explain?
    Piston speed.
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    just a ski boat with bark Carnivalride's Avatar
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    Quote Originally Posted by steelcomp View Post
    I prefer short deck builds unless the stroke absolutely demands a tall deck. Short deck builds are lighter, have shorter pushrods and it;s easier to get the runners of a TR under the carbs. A naturally aspirated 582 (4.6 bore x 4.375 stroke) with the right top end will make 1200 hp. at a reasonable rpm. I don't have a problem with a 4.375 in a short deck but I think that's the max.
    What kind of rpm Scott and I assume this is drag race use and not endurance stuff. What kind of top end and compression are you needing for 1200hp and how many passes before inspections/freshen ups?


    Quote Originally Posted by steelcomp View Post
    Quote Originally Posted by jimsplace View Post
    I don't understand what you mean "Seems like the longer stroke motors use up cylinder head at a pretty low RPM". Could you explain?
    Piston speed.
    The higher piston speed require larger heads with more flow to keep up. The rod/stroke ratio on a standard 9.8 deck 582 is going to require a head with some CSA to turn 7500rpm.
    Quote Originally Posted by gn7 View Post
    Carnivalride, you really need to find some other hobby. You have no talent for this boat thing

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