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How big of a cam?

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Old May 6, 2009 | 03:36 AM
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Default How big of a cam?

How big of a cam can i run on a 5.3 without upgrading the stock valvetrain I.e: springs pushrods and rocker arms? is a .588 lift cam too much?

Last edited by soulefood; May 6, 2009 at 03:37 AM. Reason: spelling
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Old May 6, 2009 | 03:59 AM
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I'm running LS6 springs with 525/532 lift.
I believe the stockers only go up to like .500 lift and can't handle the lobe design of most aftermarket cams.
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Old May 6, 2009 | 07:58 AM
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Originally Posted by soulefood
How big of a cam can i run on a 5.3 without upgrading the stock valvetrain I.e: springs pushrods and rocker arms? is a .588 lift cam too much?
Stock cam is as big as you can go on stock springs.
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Old May 6, 2009 | 08:05 AM
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i have been running a 218/229 .560 .560 113 on stock valvetrain for almost 2 years. still going strong. im not saying its an ideal thing to do and i dont recommend doing it.
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Old May 6, 2009 | 03:38 PM
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Originally Posted by mcfarlnd
i have been running a 218/229 .560 .560 113 on stock valvetrain for almost 2 years. still going strong. im not saying its an ideal thing to do and i dont recommend doing it.
I bet you get some serious valve float.
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Old May 6, 2009 | 04:54 PM
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Originally Posted by mcfarlnd
i have been running a 218/229 .560 .560 113 on stock valvetrain for almost 2 years. still going strong. im not saying its an ideal thing to do and i dont recommend doing it.
Since when are LS6 springs stock??? I was reading in your signature about how one of your mods are LS6 springs???????

Originally Posted by viciousknid
I bet you get some serious valve float.
Yes. I bet he does!!!!
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Old May 6, 2009 | 04:55 PM
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Originally Posted by soulefood
How big of a cam can i run on a 5.3 without upgrading the stock valvetrain I.e: springs pushrods and rocker arms? is a .588 lift cam too much?
Yes. Stock is as high as you can go. And a .588 lift is huge!!! What's the duration and LSA?
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Old May 6, 2009 | 10:19 PM
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Hmmm, maybe he meant stock if you're driving an LS6 lol If you're going with almost .590 lift, I'd get a set of PAC springs...
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Old May 10, 2009 | 03:23 PM
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X2....lol
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Old May 10, 2009 | 03:26 PM
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.588 lift definitely needs upgraded springs and preferably hardened pushrods too
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