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piston deck height?

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Old 03-21-2010, 02:35 PM
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Default piston deck height?
Whats the stock piston deck height in a 346ci ls1?
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Old 03-21-2010, 02:38 PM
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The factory piston compression height is 1.340" +/- a couple thou.

The factory deck height is 9.240"

does that answer your question?
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Old 03-21-2010, 02:47 PM
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Originally Posted by AES Racing
The factory piston compression height is 1.340" +/- a couple thou.

The factory deck height is 9.240"

does that answer your question?
thanks, sorry i wanted to know if the piston goes out of the bore, flat, or slightly below in the bore at TDC?
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Old 03-21-2010, 03:39 PM
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.007-.008 out of the hole......
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Old 03-21-2010, 11:11 PM
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Originally Posted by SOMbitch
.007-.008 out of the hole......
Agreed.
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Old 03-22-2010, 11:32 PM
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how can you calculate this on a built motor you have?
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Old 03-23-2010, 12:48 AM
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Originally Posted by daniel6718
how can you calculate this on a built motor you have?
with or without the heads on?

on paper
(stroke length/2 + rod length + piston CH) - deck height = deck clearance
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Old 03-24-2010, 12:58 AM
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without the heads on...a feeler gauge seems kinda inaccurate...a dial indicator?
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Old 03-24-2010, 09:05 PM
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Originally Posted by daniel6718
without the heads on...a feeler gauge seems kinda inaccurate...a dial indicator?
Dial indicator either with a bridge or magnetic stand



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Old 03-25-2010, 08:11 AM
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average ls1 with a stock block and crank is about 005-008? out of the hole?
its got compstar rods and diamond ls1 pistons 1.309
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