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how big can a 5.3 go?

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Old 02-20-2005, 01:19 AM
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Default how big can a 5.3 go?
how large can a 5.3 bore to safely? lookin to get every bit i can out of this engine.
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Old 02-20-2005, 10:57 AM
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If the block checks out OK, you can go up to the stock bore of an LS1 (3.90"). Add a 4.00" stroke crank and you end up with 382 in^3.
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