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What’s going on here? LS3 Block

Old 01-06-2019, 01:51 PM
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Default What’s going on here? LS3 Block



So I pulled the driver side head off this LS3 and see this. Is that from a bad ring? Or can tell me what’s going on here? Motor has 120k on it.

Last edited by Jayzmaro10; 01-06-2019 at 09:01 PM.
Old 01-07-2019, 05:08 AM
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looks like a "water mark" to me. but without knowing the history?
Old 01-07-2019, 08:59 AM
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Need more:
Pictures/Angles
Some history/troubleshooting/symptoms?



But, all of this could be absolutely normal (to some extent)

The key is, what do your other cylinders look like??

Last edited by AndyTA; 01-07-2019 at 09:30 AM.


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