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317 to 243 quickie??

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Old 08-06-2010, 05:09 PM
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Exclamation 317 to 243 quickie??
would d stock 317s springs and rockers fit 243 heads with jst heads N valves
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Old 08-06-2010, 05:12 PM
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yep... pretty much all LS1 parts are interchangeable.
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Old 08-06-2010, 05:13 PM
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^^^what he said^^^
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Old 08-06-2010, 05:20 PM
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so their wouldn't be any problem doin this?? peformance wise are 243s better than 317s in NA lq4 motor
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Old 08-06-2010, 05:24 PM
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it's a direct bolt on correct, wat bout head gasket difference
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Old 08-06-2010, 05:26 PM
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Originally Posted by LaCamionetaGris
so their wouldn't be any problem doin this?? peformance wise are 243s better than 317s in NA lq4 motor
They pretty much flow the same but the 243s would give you more compression.
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Old 08-06-2010, 05:33 PM
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^^^ ok I got this guy wants to swap me my stock 317s for his stock 243s heads and valves only should I do it they look pretty clean and swap my rockers N spings over??? 243s were on d TO DO LIST any ways
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Old 08-06-2010, 06:21 PM
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Originally Posted by LaCamionetaGris
it's a direct bolt on correct, wat bout head gasket difference
Make sure you use 6.0L head gaskets. LS1/LS6 head gaskets won't work too well...
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Old 08-10-2010, 04:59 PM
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thanks the guy backed out... Has someone swaped to the tbss intake on a lq4
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