Generation III Internal Engine 1997-2006 LS1 | LS6

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LM7 5.3 help

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Old

Aug 4, 2023 | 09:30 AM

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LM7 5.3 help

I have measured my bores and the largest is 3.783 with 3.780 being stock spec. Can I hone and rebuild with stock pistons and rings or do I require bore with larger rings and pistons?

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Aug 4, 2023 | 11:21 AM

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5.3's typically wear the piston skirts. New pistons and rings should be fine. If you've never honed a cylinder before you may just want to leave it alone. Post some pics of cylinders and old pistons if you want. I've had good results Just putting new pistons, rings, and oil pump if everything else looks good

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Aug 4, 2023 | 05:35 PM

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Thank you! I think Im good too.
Is there reference you know for what tolerances are?

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Aug 14, 2023 | 03:57 AM

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Quote:

Originally Posted by DrMick

Thank you! I think Im good too.
Is there reference you know for what tolerances are?

Have you found any references?

Edit: ok

Last edited by AndrewThompson; Sep 14, 2023 at 04:51 AM.

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Aug 14, 2023 | 04:51 PM

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Quote:

Originally Posted by AndrewThompson

Have you found any references?

Not yet

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