INTERNAL ENGINE MODIFICATIONS Valvetrain |Heads | Strokers | Design | Assembly

LQ4 dish?

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Old Aug 17, 2009 | 10:20 AM
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Question LQ4 dish?

Did a search, found no exact answer.
I need the dish CC volume on the stock, LQ4 piston.[2005].
If available, I'd like to see the calculations for C/R w/ stock gaskets and stock LS1 heads. [Looking to get close to 10:1, without milling, piston change.]
TIA,
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Old Aug 17, 2009 | 11:20 AM
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I do believe it is 6.7cc
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Old Aug 17, 2009 | 12:35 PM
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just put some 5.3 heads on it then
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Old Aug 17, 2009 | 02:30 PM
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-6.5cc
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Old Aug 17, 2009 | 04:44 PM
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Lightbulb Exactly..

Originally Posted by Truckshop
just put some 5.3 heads on it then
what I am doing. I wanted to calculate the actual CR..
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Old Aug 17, 2009 | 04:46 PM
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Lightbulb Exactly..

Originally Posted by Truckshop
just put some 5.3 heads on it then
what I am doing. I wanted the info to calculate the CR w/ various combos....
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Old Aug 17, 2009 | 07:03 PM
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Originally Posted by Old Buzzard
what I am doing. I wanted the info to calculate the CR w/ various combos....
cool. keep us posted with what you come up with. pretty sure any 5.3 head is gonna put you over 10 to 1
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Old Aug 17, 2009 | 07:06 PM
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if you do 5.3 heads I would cut it for 2" valves


just saying. Or you could get some 241s and mill them I think approximately .010 and acheive 10:1. I know you dont wanna mill but there would probably be a lesser cost with milling a set.
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