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Old Feb 18, 2013 | 04:34 PM
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Default Ls6 valve springs

Will ls6 valve springs work with comp cams 54-426-11???
it is 222/224 .566/.568 112lsa. This is a budget build and pinching pennies where i can so if they will work thats what ill buy.
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Old Feb 18, 2013 | 05:02 PM
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you will need to know the spring pressure required for that cam.that cam has a different lobe lift rate then the GM cams.
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Old Feb 18, 2013 | 05:22 PM
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The ls6 springs are only rated for .550" lift
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Old Feb 18, 2013 | 05:34 PM
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From what i have found is they are rated at .570 or .580 lift... not sure which one is true
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Old Feb 18, 2013 | 08:47 PM
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Comp cams recommends using 26918 springs so i think i will go with that. i have been reading that the xfi lobes have pretty fast ramp rates and alot of guys are using double springs but most i see have a more aggresive cam than i will be using
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Old Feb 19, 2013 | 12:40 PM
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No, LS6 springs will not handle those lobes for an extended period of time. Too sharp of a ramp.
BTW lift capability is not the only thing one has to look at in choosing springs. You have to look at the cam's pressure requirements.
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Old Feb 20, 2013 | 10:53 AM
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Better off in the long run to get a new set of springs.
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