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Generation III Internal Engine 1997-2006 LS1 | LS6
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799 heads

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Old Apr 23, 2009 | 10:20 AM
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Default 799 heads
Can you guys help me out with some info on these heads. Are these truck heads?
Thanks
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Old Apr 23, 2009 | 10:21 AM
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these are the heads that come on allot of the newer engines, they are the same as the ls6 243s.
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Old Apr 23, 2009 | 10:24 AM
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Trucks or ls cars
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Old Apr 23, 2009 | 10:30 AM
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both, some of the 5.3 trucks have them and the ls2 cars and trucks have them.
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Old Apr 23, 2009 | 10:43 AM
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Thanks man. Do you know any specs on these heads
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Old Apr 23, 2009 | 11:01 AM
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just search for the specs on the 243s, they are identical.
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Old Apr 23, 2009 | 11:03 AM
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no, not identical, do search on them, youll see.
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Old Apr 23, 2009 | 11:06 AM
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243's and 799's are very similar. The main difference is/are the valves that they come with from GM.
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Old Apr 23, 2009 | 11:08 AM
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look at post #9:
https://ls1tech.com/forums/midwester...799-heads.html
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Old Apr 23, 2009 | 11:17 AM
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Do they fit on an ls1.
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Old Apr 23, 2009 | 11:19 AM
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Yes, they are a perfect upgrade for an LS1 short-block!
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Old Apr 23, 2009 | 12:17 PM
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yeah, fit 4.8/5.3/5.7/6.0
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Old Apr 23, 2009 | 02:17 PM
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Same thing!
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