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Is 0.005 ovebore enough to rebuilt LQ4 with 150k mile ?

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Old 02-07-2010, 07:19 AM
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Default Is 0.005 ovebore enough to rebuilt LQ4 with 150k mile ?

I'm in the process of having my block rebuilt boost freindly.

I'm not looking for overboring, will do minimal.

Is 0.005 inch over pistons ok ?


I was looking for 0.030 over but fond a good deal local on 0.005 pistons !
Old 02-07-2010, 07:30 AM
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thats gonna depend on the condition of the bores. without measuring you'll never know
Old 02-07-2010, 08:18 AM
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Originally Posted by outkast6991
thats gonna depend on the condition of the bores. without measuring you'll never know
I know, but assuming from a running engine (not damaged)

I think the limit to sercice on oem lq4 bore is 4.0007-4.0014 in


It should be ok ?
Old 02-07-2010, 09:53 AM
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depends on the cylinder wear.
Old 02-07-2010, 02:03 PM
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your just gonna have to measure, with 150k you may be cutting it close




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