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Thread: piston slap question
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12-31-2006, 11:38 AM #1
piston slap question
I have a 2000 ws6 m6 with 75k on it i am in the process of rebuilding the engine because the piston slap ( or what i belive to be piston slap) has become unbearable. i will know soon enough what the noise is for sure but is there anything i can do, short of a resleeve and pistons, to get rid of it if it is piston slap. I am an auto tech and i do all my own work but i work for toyota usually if i get a car with piston slap I pull the head and the cross hatch is worn out of the cyliders at which time it gets a short block. I'm going to be ordering a cam kit, clutch, flywheel, 4.10 gears and such but if i cant get rid of the piston slap I want to know so i can order a bare block. Any input from any one who has been through this would be greatly appreciated thanks
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12-31-2006, 11:53 AM #2
seems it does not hurt the LS1 motor so no one tries to correct it, do a search.
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12-31-2006, 02:35 PM #3
i have done extensive research and motors with piston slap have short "life expectancy
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12-31-2006, 02:36 PM #4
shorter not short
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01-01-2007, 05:47 AM #5
- Join Date
- Dec 2006
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- Minneapolis
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- 7
Pewter- 00 Camaro SS
It is my understanding that piston slap was due to the short skirts of the pistons and weak rings. Replace the pistons and your motor will quit slapping.
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01-01-2007, 01:31 PM #6
- Join Date
- Dec 2006
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- Minneapolis
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- 7
Pewter- 00 Camaro SS
That's what I meant
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01-01-2007, 01:58 PM #7
- Join Date
- Oct 2005
- Location
- RI
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Mag Red- 2002 Vette
There was a piston update in the spring of 01, which included coated pistons. Are you using these in the rebuild? If you have it down that far, have you considered a forged bottom end? Might not get rid of the slap (forged pistons require a bit more cold clearance) but it would be a lot stronger.
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01-01-2007, 04:32 PM #8
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