Help me with a piston ID.... - Chevelle Tech

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post #1 of 5 (permalink) Old Oct 2nd, 12, 7:57 PM Thread Starter
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Don
 
Join Date: Nov 2006
Location: Columbia SC
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Help me with a piston ID....

Pulled the head off one side and this is on the top of the piston

L22 oo 060

(SBC flat tops with 4 valve reliefs.)

I tried to google it but it seems to pull in every 60 over piston made. I am trying to find out the brand and if they are cast or forged, I assume 060 means .060 over. So I guess that makes it a 358 or somthing.

Thanks
Don
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post #2 of 5 (permalink) Old Oct 3rd, 12, 2:37 AM
Boldly procrastrinating
TerribleTom II
 
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Re: Help me with a piston ID....

after the L it's a 4 digit number, like 2252. see if you can get it with better light or something.

Tom
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post #3 of 5 (permalink) Old Oct 3rd, 12, 8:21 PM Thread Starter
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Don
 
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Re: Help me with a piston ID....

Ok I looked at another one and I think it says L2256 060. That particular spot on each piston seems to take the brunt of the punishment so they are all worn badly right on the 5 and 6.
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post #4 of 5 (permalink) Old Oct 5th, 12, 10:58 AM
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Tom
 
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Re: Help me with a piston ID....

That's a TRW forged piston P/N that will get you all kinds of hits on Google. Here's a thread from this board:
TRW L2256 RPM range
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post #5 of 5 (permalink) Old Oct 12th, 12, 8:06 AM Thread Starter
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Don
 
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Re: Help me with a piston ID....

Thanks for the info! My laptop crashed and all I have is my iPhone and its tiny screen. Thanks for doing the legwork.
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