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Do 317 hrads on a stock bore ls1 require a 6.0L head gsaket??

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Old 10-25-2011, 10:19 PM
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Default Do 317 hrads on a stock bore ls1 require a 6.0L head gsaket??
?? Help??
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Old 10-25-2011, 10:21 PM
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Damn sorry op., I was thinking like 5.3 heads on a 5.7 bore,
Last edited by flippincamaro; 10-27-2011 at 06:00 PM. Reason: was backwards
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Old 10-25-2011, 10:32 PM
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Everyone is sayin match the gasket to the heads
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Old 10-25-2011, 11:10 PM
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The bore in the gasket must be larger than both the bore of the block and the heads. So you match whichever is larger.
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Old 10-26-2011, 09:31 AM
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Originally Posted by SippiSpeedhawk
The bore in the gasket must be larger than both the bore of the block and the heads. So you match whichever is larger.
THIS! Your gasket must be the same or just larger than whichever is the larger bore, block or chamber!

That being said, you do need to run the larger bore gasket for the 317 heads on an LS1, because those chambers are wide!

http://www.texas-speed.com/p-206-gm-...ad-gasket.aspx

Those would work great!
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Old 10-27-2011, 06:00 PM
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ive always bought the gasket to the engine, like if i put 5.3 heads on a 5.7 engine id put 5.7 gaskets, well i reckon thats right sorry guys, I screwed that up, i guess i would use 6.0 gaskets on a 5.7 engine, damn sorry op
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Old 10-27-2011, 07:59 PM
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Ok. Well. They are slightly milled. Do they make a gasket to cOmpensate for the 30 thousandths loss??
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Old 10-27-2011, 08:14 PM
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That i do believe they do, try one of the sponsers sites to the right, they sell gaskets with different thickness, Or you could run stock gasket an gain a tad of compression, Depending what your plans are?
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