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Generation IV Internal Engine 2005-2014 LS2 | LS3 | LS7 | L92 | LS9

I got my L-92 heads

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Old 02-15-2006, 06:24 AM
  #21  
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From Chicago Autoshow>
Has offset exhaust rocker.

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Old 02-15-2006, 09:08 AM
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Do you know if these use the standard length '04+ LSx head bolts/studs?
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Old 02-15-2006, 09:32 AM
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chamber looks like the old fast burn heads
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Old 02-15-2006, 11:57 AM
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What cc is the combustion chamber.
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Old 02-15-2006, 06:01 PM
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Originally Posted by 1997 vet
What cc is the combustion chamber.
71cc I believe
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Old 02-15-2006, 10:26 PM
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Originally Posted by Eddiep
Do you know if these use the standard length '04+ LSx head bolts/studs?

Yes. Even length bolts.
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Old 02-16-2006, 12:29 AM
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does anybody know the size of the intake ports?
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Old 02-16-2006, 04:03 PM
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A FAST intake manifold wont work on these?
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Old 02-16-2006, 04:04 PM
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Originally Posted by ifryrice
A FAST intake manifold wont work on these?
It should be able to.
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Old 02-16-2006, 04:17 PM
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checked prices on gmpartsdirect.....160 a piece bare....wow....THATS INSANELY CHEAP!!!!!
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Old 02-16-2006, 07:22 PM
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Originally Posted by ifryrice
A FAST intake manifold wont work on these?
No it will not. With a lot of modification it could though.

Nate
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Old 02-16-2006, 08:36 PM
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Has anyone seen anything about the flow rates on these heads as-cast and/or ported at various lifts? If so, where can I find this information?

Thanks,

Steve
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Old 02-16-2006, 11:38 PM
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Originally Posted by Steve Bryant
Has anyone seen anything about the flow rates on these heads as-cast and/or ported at various lifts? If so, where can I find this information?

Thanks,

Steve
Read post 19.

Nate
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Old 02-17-2006, 03:48 PM
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Originally Posted by Nate_Taufer
No it will not. With a lot of modification it could though.

Nate
Nope, the runners are too wide and you would end up outside the o-ring. GM or sheetmetal.

Brandon
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Old 02-17-2006, 03:51 PM
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Originally Posted by J-Rod
The runer is actually taller, so you'd have to fill the floor probably.
Yuck, that is a scary proposition with even a stock shortblock, much less a nice forged setup. Too many epoxies fail.

Brandon
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Old 02-19-2006, 01:22 AM
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So will the GM truck intake definately bolt to these? because so would my Magnacharger?

Article says they will work on LS2 so I guess we can assume any 6.0L derivitive block.
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Old 02-19-2006, 03:01 AM
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Any 4.0" bore block will work
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Old 02-20-2006, 02:02 PM
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Guys I have several sets without seats & guides for $250 a pair!
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Old 02-20-2006, 02:08 PM
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Originally Posted by Jason 98 TA
Guys I have several sets without seats & guides for $250 a pair!
That is fabulous if we can be assured of an intake that fits under a Ybody hood. Seriously fabulous.
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Old 02-22-2006, 12:37 PM
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Originally Posted by BLASTER
So will the GM truck intake definately bolt to these? because so would my Magnacharger?

Article says they will work on LS2 so I guess we can assume any 6.0L derivitive block.
Actually, the L92 and LS7 heads should both work on any LS series block with a minimum bore of 4.00" However, the interface between the intake manifold and the intake runners is different. The LS2/LQ4/LQ9/MagnaCharger RADIX/All Current Aftermarket Manifolds are set up for a cathedral roofed style interface. The L92 and LS7 inlet ports are rectangular and are different from each other (mainly in height as far as I can tell). Unless you can get and use either an L92 or an LS7 factory intake manifold, the L92/LS7 heads won't work. I'd about guarantee though that MagnaCharger and everyone in the aftermarket intake manifold business for Gen III/IV is developing manifolds now. I'm sure too, that the factory LS7 and L92 intakes probably flow well in their current state. However, if you want to use an LS7 manifold on an L92 head, there's going to be a pretty big mismatch. If the L92 intake runner were ported to be properly matched to an LS7, that would probably work fine.

Steve

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Last edited by Steve Bryant; 02-22-2006 at 01:04 PM.
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