Generation IV Internal Engine 2005-2014 LS2 | LS3 | LS7 | L92 | LS9

408 stroker excessive blowby

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Old Jan 19, 2025 | 12:34 PM
  #21  
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Good luck sir. Keep us posted on what you find out.
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Old Jan 19, 2025 | 05:28 PM
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Once torn down check to see if a set of rings were put in upside down. I've read that can let too much oil past the rings.
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Old Jan 19, 2025 | 07:23 PM
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"i think at this point i don’t really have a choice but to tear down motor and have a good LS machine shop go through all measurements and see what the hell is going on."
A suggestion: Let the shop doing the investigation do the teardown.
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Old Jan 19, 2025 | 09:56 PM
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Originally Posted by Old Buzzard
A suggestion: Let the shop doing the investigation do the teardown.

Absolutely...They're not gonna' want a pile of used parts with the question..."What's wrong with these"?
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Old Jan 20, 2025 | 09:58 AM
  #25  
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I'd look for the piston to wall clearance.
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Old Jan 21, 2025 | 09:45 PM
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Originally Posted by CattleAc
Absolutely...They're not gonna' want a pile of used parts with the question..."What's wrong with these"?
That’s crazy who would do that. that’s the point of bringing it to the machine shop so they can investigate and do their job. plus i’m not letting the shop pull motor and tear down i’m done working on this thing until problem is found
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Old Jan 22, 2025 | 08:05 AM
  #27  
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Bottom line....
Several have given input as you asked for, and you say:
"plus i’m not letting the shop pull motor and tear down i’m done working on this thing until problem is found"
If you think looking at the engine will reveal the problems, it might be a good career move to become a psychic card reader.....
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