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5.3L bored to 4.000?

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Old 01-20-2009, 11:15 AM
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Default 5.3L bored to 4.000?
Is this possible?
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Old 01-20-2009, 11:25 AM
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no, max bore on a 5.3 is about 3.905
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Old 01-20-2009, 11:35 AM
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That sucks, well cool, thanks for the info. Do you happen to know the thickness of the cylinder walls?
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Old 01-20-2009, 11:42 AM
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They will vary, but even boring it to LS1 5.7 over bore size (3.905) they should be checked to be sure they're still thick enough.
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Old 01-20-2009, 11:51 AM
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Well for instance going to 3.900 bore for LS1 pistons, whats a good amount of wall to have left?
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Old 01-20-2009, 03:02 PM
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i was under the impression that 5.3 and 6.0 blocks were the same except for the bore?
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Old 01-20-2009, 03:10 PM
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Originally Posted by jeforton
i was under the impression that 5.3 and 6.0 blocks were the same except for the bore?
I wouldnt of thought that to be true because they wouldnt waste time boring the same block to make a 6.0 when they can just cast them for the bigger bore.
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Old 01-20-2009, 03:17 PM
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makes more sense than my idea.
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Old 01-20-2009, 03:19 PM
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have it sonic checked and that will tell you how far you can go
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Old 01-20-2009, 03:43 PM
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just buy a 6.0 block locally.
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