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What is GM LS1 HeadGasket Overbore??

Generation III Internal Engine 1997-2006 LS1 | LS6

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What is GM LS1 HeadGasket Overbore??

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Old

Feb 2, 2002 | 11:39 PM

#1

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From: Centrifugal City

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What is GM LS1 HeadGasket Overbore??

What overbore is the stock GM LS1 Headgasket??

Thanks!

Old

Feb 3, 2002 | 09:57 AM

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From: Centrifugal City

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Re: What is GM LS1 HeadGasket Overbore??

ttt

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Feb 3, 2002 | 11:18 AM

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Re: What is GM LS1 HeadGasket Overbore??

didn't we already cover that already?
I have a 2 stock gaskets here- part numbers-12558809 and 12558810.
They both measure right at 4" gasket bores compressed.Stock engine bore is 3.898".
So that puts you at .102" overbore + or - a few thousands.
Steve

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Feb 3, 2002 | 09:08 PM

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From: Centrifugal City

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Re: What is GM LS1 HeadGasket Overbore??

Hmm, might be slippin' here.. Been tubbing the car the last 2 days.. little sleep.

Thx! 4".

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