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6.0l ??

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Old 11-22-2007, 01:01 AM
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Default 6.0l ??

hey guys i was just wondering what a 6.0L LQ4 or LQ9 block bored .30 or .40 over would be cubic inch wise? and is boring .40 too much? also im kinda new to these engines. how do you make the 408?
Old 11-22-2007, 04:44 AM
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moving to internal
Old 11-22-2007, 07:08 AM
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.03 is considered max unless you have the block tested.
Old 11-22-2007, 08:00 AM
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.30 over is the max? and how about the 408 what engine is bored to make it?
Old 11-22-2007, 08:45 AM
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anyone?? im getting ready to try to do it. and i need all the info i can get on it.
Old 11-22-2007, 10:07 AM
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I'm building a stroker right now. To find out cubes for an engine its..
Bore x Bore X stroke x .7854 x Amount of cylinders

Eg. 4.030x4.030x4.0x.7854= 51.02 x 8= 408.18CID

So im running a 6.0L board .030 and a 4" long stroke. Hope that helps a lil.
Old 11-22-2007, 10:31 AM
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Originally Posted by Coonass350
anyone?? im getting ready to try to do it. and i need all the info i can get on it.
Talk to someone at a experienced machine shop, firmilar with LSx stuff.
Old 11-22-2007, 10:56 AM
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blownz28man, what are you building? a 370? is that right?
Old 11-22-2007, 11:31 AM
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also on figuring up the cubes, what is the .7854?? what does that stand for?
Old 11-22-2007, 06:15 PM
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Not to be an ***, but this is middle school level math. Here's the basic equation for finding the volume of a cylinder.

Eq 1) area_of_circle*height*multiplier = volume_of_cylinder(s)

Where:
  • area_of_circle is the area of the piston [top] = pi(bore/2)^2
  • height is the stroke
  • multiplier is the number of cylinders

Therefore,

Eq 2) pi*(bore/2)^2*stroke*number_of_cylinders = displacement


The .7854 is a mathematical factor that accounts for using bore*bore instead of pi*(bore/2)^2.
Old 11-22-2007, 08:52 PM
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oh okay thanks. i didnt know all that until just now. never really asked. and how much more does a forged 370 weigh compared to a cast 370? i mean internals of them.
Old 12-11-2007, 05:21 PM
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?????
Old 12-11-2007, 08:17 PM
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doubt it weighs anymore.
Old 12-11-2007, 09:28 PM
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oh okay, thats what i figured, if it weighs anything more it cant be much.
Old 12-11-2007, 11:52 PM
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if the weight was diff it wouldn't be enough to notice any how unless ur going for all out racing then i would use billet but they have a tendency to stretch after a while
Old 12-12-2007, 10:00 AM
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oh okay. a friend of mine told me billet was very expensive, that true?



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