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Old Aug 27, 2007 | 08:39 PM
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Default ls6 spring question
I got a set of ls6 springs with my hot cam. There are two different versions of the ls6 spring. The yellow and the blue. Mine are blue. Which set is better or heavier duty? what are their specs? Can anyone answer this ?

Jeff
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Old Aug 27, 2007 | 10:36 PM
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I think Blue are good to .550 ish, yellow.580 ish, 90 lb seat pressure for both, but I can't find info right now.
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Old Aug 27, 2007 | 11:06 PM
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10. 01 LS6 springs: max lift .540

O.D:
I.D:
seat pressure: 90 @ 1.800
open pressure 260 @ ?

11. 02 LS6 springs or green: max lift ~.580

O.D
I.D:
seat pressure: 90 @ 1.800
open pressure: 294 @ ?

12. 03+ LS6 springs(orange): max lift ~.580

O.D
I.D:
seat pressure: 90 @ 1.800
open pressure: 294 @ ?

13. Stock Ls1 Springs

O.D:
I.D:
seat pressure: 75 @ 1.800
open pressure: 230 @ ?
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Old Aug 28, 2007 | 02:52 PM
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The blue springs REQUIRE a certain break in. Do not forget this. I had 1 fail in the first 2 hours of runtime, supposedly because I had not broken them in correctly. This was with the hotcam, also. I do not remember what the break in entails. Do a search.
Good luck (if you know of someone in need of 17 ls-6 springs, I got 'em).
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Old Aug 5, 2008 | 04:43 PM
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Originally Posted by 99SSragtop
10. 01 LS6 springs: max lift .540

O.D:
I.D:
seat pressure: 90 @ 1.800
open pressure 260 @ ?

11. 02 LS6 springs or green: max lift ~.580

O.D
I.D:
seat pressure: 90 @ 1.800
open pressure: 294 @ ?

12. 03+ LS6 springs(orange): max lift ~.580

O.D
I.D:
seat pressure: 90 @ 1.800
open pressure: 294 @ ?

13. Stock Ls1 Springs

O.D:
I.D:
seat pressure: 75 @ 1.800
open pressure: 230 @ ?
what about the yellow ones?
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Old Aug 5, 2008 | 05:54 PM
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My 03 Z06 had yellow ones. What lift are they rated to?
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Old Aug 6, 2008 | 09:14 AM
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I also have the yellows.. I believe they are good to .550
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Old Aug 6, 2008 | 10:45 AM
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Originally Posted by 99_SS_LS1
I also have the yellows.. I believe they are good to .550
I'm running the yellows too w/ my ASA cam. According to Lingenfelter, they are good to .580
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Old Aug 6, 2008 | 01:57 PM
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^^correct^^
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Old Aug 7, 2008 | 12:34 AM
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I had yellow springs before we swapped over to PRC Gold Extremes. We checked them on the heads before we took them off to .650" lift before binding. May not be useful info but I was surprised.
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Old Aug 7, 2008 | 01:25 AM
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I've run them on .590 lifts but it also depends on lobe profile (shimmed). Changed them after 12K miles
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