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Old 04-27-2009, 07:11 PM
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Default 2000 ws6 heads
I have a 2000 ws6 and it has 241 heads on it, are these ls6 heads? and also to change the valve springs does a guy gota pull the heads off to do that?
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Old 04-27-2009, 07:15 PM
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You can do valve springs while the heads are still on the car
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Old 04-27-2009, 07:38 PM
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do u know if them heads are ls6 heads
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Old 04-27-2009, 07:40 PM
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243s are ls6 heads. 241s are regulars.
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Old 04-27-2009, 07:47 PM
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these heads were off a 2002
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Old 04-27-2009, 07:53 PM
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doesnt matter on the year, the 241 head is not an ls6 head. 243 heads are ls6s and the 799s are ls6 heads.
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Old 04-28-2009, 12:51 AM
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Originally Posted by 98camZ
these heads were off a 2002
There is a thread explaining the casting numbers on GM LSx Heads. I believe it states that mid-year 2000 was when GM switched from cast #806 to #241. So a year 2000 F-body could have 241 heads from the factory.
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Old 04-28-2009, 01:22 AM
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My 2000 Z has 241s

Here is the thread with the casting numbers
https://ls1tech.com/forums/1740922-post41.html
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