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Can anyone help define some engines for me?

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Old 04-23-2005, 04:45 PM   #1
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Default Can anyone help define some engines for me?

I've been a member here at ls1tech for a little while but ironically enough I don't really know anything about them. Actually the same goes for most third gen GM motors. Can anyone explain what exactly a LS1, LS2, LS6, and 408 are? And what are the big differences?
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Old 04-23-2005, 05:31 PM   #2
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I recommend you read Jerami's Super FAQ above. It will help a lot.

Some of the info you requested:

LS1 is a 5.7 Liter (346 cu. in.) V8 that was used in Corvettes 1997-2004, Camaros 1998-2002, and Firebirds 1998-2002. Horsepower ratings from 305-345. Bore 3.900 x Stroke 3.622

LS2 is a 6.0 Liter (364 cu. in.) V8 being used in 2005 Corvettes, SSRs, GTOs, and I believe a Cadillac. Horsepower 400. Bore 4.000 x Stroke 3.622

LS6 is a 5.7 Liter (346 cu. in.) V8 derivative of the LS1 that was offered in ZO6 Corvettes 2001-2004. It's horsepower 390-405. Same bore stroke as LS1

a 408 is a LS1/6 that has an increased stroke to raise displacement to 408 Cu. In. 4.030 Bore x 4.000 Stroke
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Old 04-23-2005, 05:32 PM   #3
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If I'm not mistaken I believe that the LS2 is a Gen IV motor........not sure
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Old 04-23-2005, 06:45 PM   #4
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Quote:
Originally Posted by OneMeanZ
If I'm not mistaken I believe that the LS2 is a Gen IV motor........not sure
LS2's are stroked LS1's!!!!! With other features.
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Old 04-23-2005, 08:11 PM   #5
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If ls2 engines are stroked ls1 engines, then the above post is misleading which lists both ls1 ad ls2 stroke as 3.622 but the bore is higher. Is it stroked?
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Old 04-23-2005, 10:17 PM   #6
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Quote:
Originally Posted by 02transhawk
LS2's are stroked LS1's!!!!! With other features.
False, again.

LS1 stroke = LS2 Stroke.


Sources: LS1 LS2
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Old 04-23-2005, 10:45 PM   #7
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wow I'm a moron. all this time i thought the LS6 was a 402. Idiotttttt

Brad

EDIT: It never even occured to me that if the 6 was a 402 the intake wouldnt fit the 1. UGH
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Old 04-24-2005, 03:25 AM   #8
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LS2 block is different and thicker than the LS1/6. Although it is very similar in design so much so that a lot of accessories are compatible on both.
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Old 04-24-2005, 03:25 AM
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