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Old 08-27-2007, 08:39 PM
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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
Old 08-27-2007, 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.
Old 08-27-2007, 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 @ ?
Old 08-28-2007, 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).
Old 08-05-2008, 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?
Old 08-05-2008, 05:54 PM
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My 03 Z06 had yellow ones. What lift are they rated to?
Old 08-06-2008, 09:14 AM
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I also have the yellows.. I believe they are good to .550
Old 08-06-2008, 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
Old 08-06-2008, 01:57 PM
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^^correct^^
Old 08-07-2008, 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.
Old 08-07-2008, 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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