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LS3 heads on LS1?

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Old 06-06-2015, 02:30 PM
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Default LS3 heads on LS1?
Do LS3 heads fit on a LS1 block?
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Old 06-06-2015, 03:12 PM
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No the bore size required on those heads is 4" they will bolt up but won't actually work
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Old 06-07-2015, 08:06 AM
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thanks
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