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Old 08-23-2009, 12:44 AM   #1
UCI CamaroFan
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What is the displacement of an LS3?

As the thread title says, what is the displacement of an LS3?

I remember when I ordered my car, on the workbench print out it said that the displacement of an LS3 is 376 cubic inches.

However, when I looked at the specs on the camaro website, it says that the LS3 has a displacement of 378 cubic inches. Also, when I googled 6.2 liters to inches, it says 378 inches.

So, which one is it? I am interested because I want to get a decal for the cowl that says the correct displacement.
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Old 08-23-2009, 12:55 AM   #2
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According to GM:
http://media.gm.com/us/powertrain/en...r/2008_LS3.xls

It's 376.
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Old 08-23-2009, 01:02 AM   #3
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Well they claimed the ls1 as a 5.7 but it was 346ci. Also the 5.0 mustang was actually a 4.999999.
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Old 08-23-2009, 01:41 AM   #4
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Quote:
Originally Posted by Dragoneye View Post
Cool, thanks. that's a pretty neat spreadsheet.
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Old 08-23-2009, 04:24 PM   #5
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376 cubic inches

6.16 liters

GM just rounds up on the liters.
(6.2 sounds better than 6.16)
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Old 08-23-2009, 04:39 PM   #6
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Quote:
Originally Posted by UCI CamaroFan View Post
Cool, thanks. that's a pretty neat spreadsheet.
Yep!

They have one for every single engine and transmission they make here:
GM Powertrain
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Old 08-23-2009, 06:01 PM   #7
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So is a L99 the same thing ? im guess it is since its basically a LS3 and different cam and etc.
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Old 08-23-2009, 09:46 PM   #8
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So is a L99 the same thing ? im guess it is since its basically a LS3 and different cam and etc.
More or less yes, the L99 and LS3 are the same at their core, but they have different compression, lower rev limit on L99, AFM on L99, etc.

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Old 08-23-2009, 10:47 PM   #9
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Quote:
Originally Posted by Milk 1027 View Post
376 cubic inches

6.16 liters

GM just rounds up on the liters.
(6.2 sounds better than 6.16)
yup
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