5.3 bored yo a 347 or 383

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kevhill85

96 BD Tahoe!!!!
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Just want to state the is upfront . I know what the 6.0 blocks can do and the cost of them( cheap). I have one and I will build the 6.0 later..

Ok I have been reading about the 5.3 block being bored out to an LS1(3.90 bore) and being able to handle the upper horse power add on better. I am thinking of building a 5.3 into a 347 liter and run all forged internals.

Has anyone done this (347 or 383) and what would be the cost of boring the 5.3 to a 3.90 bore?
 
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