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5.3 or is it a 4.8?

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Old Feb 18, 2011 | 05:46 PM
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Default 5.3 or is it a 4.8?
is there any way to tell a 5.3 from a 4.8 when its on the engine stand. I'm not sure can anyone help with this?
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Old Feb 19, 2011 | 03:59 PM
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Block casting number on the back driver's side. There's a sticky floating around somewhere that explains every number.
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Old Feb 19, 2011 | 04:22 PM
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https://ls1tech.com/forums/conversio...ification.html

check out the last two post
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