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LS6 Spring Limit....

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Old Apr 9, 2012 | 12:43 AM
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BottleFedZ346's Avatar
BottleFedZ346
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Arrow LS6 Spring Limit....
Got some LS6 Yellow springs to use on my 5.3 build for pretty much nothing, I was wondering what the power limit on them were before you start running into valve float issues?
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Old Apr 9, 2012 | 07:11 AM
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Some say you'll get valve float after 8psi. I went with lunati duals just for a peace of mind. And their only 200$ for the kit. And are rated to. 650 lift.
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Old Apr 9, 2012 | 11:57 AM
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Stock cam?

A friends car runs 13psi on a MP T70 totally stock 5.3 long block. Stock springs. Id say your ok below 600 if you dont spin it past 6k.
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Old Apr 9, 2012 | 06:46 PM
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Stock LS2 cam, also got for free......

I seen somebody else on here made 594whp on the yellow springs, guess ill have to wait and see!
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Old Aug 13, 2012 | 11:03 PM
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I made 679whp with the blue ls6 springs now I think im getting valve float. The springs have been in the car for a year and half street driven on 600whp so maybe I wore them out.
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