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ls3 valve angle?

Old Sep 7, 2008 | 02:56 PM
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Default ls3 valve angle?

does anyone know the valve angle on the ls3"s? I keep reading everything i can find but no valve angle anywhere from the gm catalogs or the website. thanks in advance for 411
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Old Sep 7, 2008 | 03:52 PM
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15*


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Old Sep 7, 2008 | 05:43 PM
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thanks slick where do you find this type of info?
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Old Sep 8, 2008 | 08:38 AM
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LS1, LS2, LS3, L92 = 15 deg
LS7 = 12 deg
C5R = 11 deg

GM Performance Parts Catalog


I could be wrong, but I believe the bigger the bore the less valve angle you need. Smaller bores shroud the valves if not angled in. Less angle improves valve train geometry for wear and high RPM stability, I think.

Last edited by Michrider; Sep 8, 2008 at 08:41 AM.
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