Thread: can a GM 5.3 L hold 500hp??? are the internals forged at all?
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Old 02-22-2007, 09:26 PM   #2
Grande Rojo
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Re: can a GM 5.3 L hold 500hp??? are the internals forged at all?
Lots of info here
-----> http://www.ls1tech.com/forums/index.php?
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