5.3L oversized pistons

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12-16-2006, 02:17 PM

circa

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5.3L oversized pistons

what pistons are you guys using for those who have bored a 5.3, maybe .03 over

im trying to find some

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12-16-2006, 05:46 PM

Lurius

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I found them to be rather hard to find, but supposedly the block is safe to bore to 3.905, and 3.898.. I thought it was a bit too much boring(stock size being 3.78 on a 5.3/4.8 block).

-Lurius

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12-16-2006, 07:14 PM

circa

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yeah im trying to find some and um...well cant!

boring it to a 350 is somehting i do not want to do. :/

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12-16-2006, 08:18 PM

1slow01Z71

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You are going to have to bore it to stock LS1 3.89 or go the overbore 3.905, there are alot of pistons for that app.

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12-16-2006, 10:16 PM

circa

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i heard something about federal mogul comming out with 4.8 5.3 5.7 and 6.0 pistons

maybe i should wait although i want the v8s10 running by march!! >.<

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