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Old 06-23-2012, 11:12 AM   #5
DjS71
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Join Date: Feb 2009
Location: Santa Rosa, CA
Posts: 267
Re: How can I tell the differense between 5.3 and a 4.8 liter LS motors

If I recall, the block for the 5.3/4.8 is the same. It'll even say "4.8/5.3" on the block. If you can't pull a head / oil pan or get a VIN, make sure you buy it for a price that is reasonable for a 4.8. Just to cover your butt.
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