Generation III Internal Engine 1997-2006 LS1 | LS6

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5.3 question

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Aug 1, 2010 | 02:42 PM

#1

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From: bay area

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5.3 question

Will 5.3's with 2.02/1.6 valves fit on a 5.3 motor? Seen another thread like this with no answers

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Aug 1, 2010 | 02:46 PM

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From: Ahwatukee

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Im not 100% sure but i think the valves are going to hit the cylinder walls your bore is 3.78 if not it will be close

Last edited by 09camaro383; Aug 1, 2010 at 02:51 PM.

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Aug 1, 2010 | 04:52 PM

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5.3 bore is 3.779.valve guide spacing is 1.913.add valve spacing to half the valve sizes,you get about 3.723 pretty close.

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Aug 1, 2010 | 05:59 PM

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From: Newport ARK.

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Quote:

Originally Posted by garygnu

5.3 bore is 3.779.valve guide spacing is 1.913.add valve spacing to half the valve sizes,you get about 3.723 pretty close.

Not trying to hijack the thread but would a set of ported 853's be a better choice?

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Aug 1, 2010 | 10:34 PM

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From: Billings, Mt

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its very close, but yes you can

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