stock valves size

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12-21-2007, 05:03 AM

slowjoe99

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stock valves size

What is the size of the stock valves on a 99 LS1? I also may have a late 98 LS1 not sure. Know how to tell? lol

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12-21-2007, 06:28 AM

bryan04h

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2.00/1.55

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12-23-2007, 02:27 AM

slowjoe99

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Thanks!

but does anyone know how to tell what year my motor is?

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12-23-2007, 02:36 AM

bryan04h

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https://ls1tech.com/forums/showpost....80&postcount=2

enjoy brother

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12-23-2007, 04:03 AM

slowjoe99

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Thanks. I'll have to look at my valve covers...
I've seen this post before but didn't think of looking it up.

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12-23-2007, 09:35 AM

bryan04h

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no worries man, good luck!

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