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Question about LS3 and LQ4

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Old Mar 16, 2014 | 07:17 PM
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Default Question about LS3 and LQ4

I just purchased a set of :LS3 heads to use on my LQ4. I still haven't purchased pistons to up the compression yet. So my question before I make the purchase is what bore it recommended for the LS3 heads. I know 4.00 bore is minimum but since I have the block taken apart and it has to go to the machine shop anyways I like to do things right the first time. Thank you
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Old Mar 16, 2014 | 07:22 PM
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LS3 bore is 4.060". Can you bore an LQ4 .060" over?
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Old Mar 28, 2014 | 10:25 PM
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Bump.
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Old Mar 28, 2014 | 10:28 PM
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bore the lq4 to ls3 specs and use ls3 pistons
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Old Mar 29, 2014 | 01:31 AM
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I have a LQ4 block with ls3 iinternals. The motor is bored .065 over using stock ls3 pistons. Motor was son is decked for safe cylinder wall thickness
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