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l92 heads on an ls1?

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Old Jun 21, 2007 | 01:09 AM
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Default l92 heads on an ls1?

im aware the bore inorder to use these heads needs to be at least 4.00. i was wondering, however, how far u can bore a stock ls1 block safely? has anyone tried to put the l92's on an ls1 and what was the result if you did? thanks for the help.

Last edited by kistlerjm9; Jun 21, 2007 at 02:10 AM.
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Old Jun 21, 2007 | 06:26 AM
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LS1 bore is 3.898
It can be bored to 3.905>3.910 (depending on year of block)

So no L92 heads can't be run on LS1, but on LQ4/9 (ie: 6.0) they are in the game.
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Old Jun 21, 2007 | 07:52 AM
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bad valve shrouding issues when ran on an LS1... even a bored/sleeved LS1, get yourself a LS2 or iron LQ4/9 block and go from there.... You'll be golden
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Old Jun 27, 2007 | 12:07 PM
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I thought I had heard of someone offering the L92 style head that was designed to be used with a 3.905 bore. I'll see if I can find more info.
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Old Jun 27, 2007 | 12:18 PM
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That is a small bore L92. Special edition ported.
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Old Jun 27, 2007 | 12:20 PM
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Do you remember who offers it?
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Old Jun 27, 2007 | 12:25 PM
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https://ls1tech.com/forums/generation-iv-internal-engine/724276-etp-11-degree-l92-castings-small-bore.html
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Old Jun 27, 2007 | 12:36 PM
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Thanks.
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Old Jun 27, 2007 | 02:39 PM
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Go 6.0l Block and build it..no replacement for displacement.
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