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Ls 4.8 ?

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Old Mar 1, 2010 | 11:59 AM
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Default Ls 4.8 ?

How far can I bore a LS 4.8 ? I mean can I bore to 4" without sleeving ? I think I already know the answer but I just confirming so any help will be deeply appreciated, thanks !
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Old Mar 1, 2010 | 01:09 PM
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can go up to around for 3.897-3.9 bore from 3.78
but that is alot of metal to remove. over .120.
i have always just gone .060. which is fine. also these size pistons are shelf items for press on stock rods.
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Old Mar 1, 2010 | 03:42 PM
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Thanks ! My dad wants my LS2 rods and pistons I'm using on my LQ9 build but I told him that they were to big and that he could not bore that much on a 4.8/5.3 without resleeving but he seems to think his block has 4.8/6.0 on it instead of 4.8/5.3. Oh well, he should be able to use my crank and that should bring him up to 5.3 if he uses my rods too. I have a lot of body work to do on my 67' so engine stuff ins't that important to me anymore.
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Old Jul 12, 2010 | 04:02 PM
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where can you get .060 pistons for a 4.8? i been looking for some
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Old Jul 12, 2010 | 04:07 PM
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for what yr? they are speed pro brand
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Old Jul 12, 2010 | 04:08 PM
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I'd suggest you go over to the performance truck forums (tab at top of page). Those guys can better answer your questions.

Andy1
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Old Jul 12, 2010 | 10:46 PM
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The 5.3L and 4.8l are the same bore
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