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stock throttle body bore

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Old 10-14-2001, 06:16 PM
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JMX
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Default stock throttle body bore
what is stock for an LS, and what should i go up to im having this extra intake manifold bored to match...should i go with 70mm or 64mm....
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Old 10-14-2001, 09:49 PM
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Default Re: stock throttle body bore (jmx2323)
I think the stock bore for an ls tb is 58 or maybe 60mm. Im sure you can bore out the outlet of any tb to about 4mm over but the inlet only the itr tb can be bored to 70mm possibly more too.
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