Taking an LS6 block to a 4.030 too big???

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Mar 14, 2007 | 05:46 AM

Jbmoney21

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From: Yadkinville, NC

Taking an LS6 block to a 4.030 too big???

Is boring a Ls6 block to a 4.030 bore gonna be risky?? Just curious if it will make the walls too thin

Mar 14, 2007 | 07:30 AM

V6 Bird

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From: Grand Prairie, TX

Quote:

Originally Posted by Jbmoney21

Is boring a Ls6 block to a 4.030 bore gonna be risky?? Just curious if it will make the walls too thin

you wont get past 3.91..Youll just be stirring water. HAHAHAH

Mar 14, 2007 | 07:31 AM

ChevyThunder17

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Sure is. You won't have any cylinder bore left. LS6 is like the LS1, 3.898 bore stock. Max you would want to go is .010" over.

You could .030" bore a 6.0 L truck block giving you a size of 4.030". But if you go with an iron block you'd add weight and need to locate the alternator up top with a alt relocation bracket.

Mar 14, 2007 | 07:56 AM

PREDATOR-Z

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From: BFE

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Originally Posted by ChevyThunder17

92lbs extra and no, no need to relocate braket. You could drill for third alternator bolt but not necessary it will hold fine with 2.

Mar 14, 2007 | 08:03 AM

ChevyThunder17

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I've never been a fan of recommending that someone drill into the block for that third hole. I kind of like having the alt up top away from the elements.