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look at these pistons!!

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Old 09-02-2009, 07:56 AM
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Default look at these pistons!!

hey guys helped my buddy change a head gasket on his ls and we noticed these rings on the pistons? is that from the machining? we both had no clue..here some pics!
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Old 09-02-2009, 08:08 AM
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Default Re: look at these pistons!!

its from "deto" when a engine detonates u get these weird circle molecules that get flatened on top of the pistons, main cause?...to high of an octane...J/K, lol..thats from the machining :')
Old 09-02-2009, 08:19 AM
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Default Re: look at these pistons!!

lol ok cool
Old 09-02-2009, 08:57 AM
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Default Re: look at these pistons!!

those look like JE pistons....cnc machine marks...
Old 09-02-2009, 10:17 AM
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Default Re: look at these pistons!!

yeah they are je
Old 09-02-2009, 10:37 AM
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Default Re: look at these pistons!!

Its fine I have same ones
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