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Generation IV Internal Engine 2005-2014 LS2 | LS3 | LS7 | L92 | LS9

LS3 vs L99 valve springs

   
Old 02-25-2015, 10:41 AM
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Default LS3 vs L99 valve springs
Is there a considerable difference between L99& LS3/LS2 valve springs. Long story short my LS1 heads have L99 springs on them which I know is good for the LS1 cam but I'm about to drop in a Hot cam.
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Old 02-26-2015, 07:55 PM
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The L99 springs would handle the Hot Cam.

The real question is whether you should get new springs (or not) based on mileage of the current set.

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Old 02-27-2015, 04:40 AM
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The springs only have 10,000 miles on them
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