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5.3 block boreXstroke question

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Old Feb 10, 2009 | 01:07 PM
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Default 5.3 block boreXstroke question

Been trying to search some stuff but the search is super pickey these days.


Whats the typical CUI for a stroked and bored out 5.3????

I assume you can still get to a 402 ish or something or do I need to find a 6.0 block????
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Old Feb 10, 2009 | 01:11 PM
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People typically take it out to the stock LS1 bore (3.900") or 5 thousandths over because there are more pistons available in that size. A 4" stroke will easily fit giving 383cid.

When you are starting out with 325cid, that is a very healthy increase in CID.
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Old Feb 10, 2009 | 01:13 PM
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I thought you could get to like a 402 with a 5.3????

Fund out I need the 6.0 for the bore... Ill keep this motor for my wifes car and find a 6.0 block a little later.

Last edited by JUICED96Z; Feb 10, 2009 at 01:35 PM.
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