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what is the static compression with 5.3L 706 heads on a LS1 ?

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Old 12-16-2010, 01:31 PM
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Question what is the static compression with 5.3L 706 heads on a LS1 ?
read that 9.5 : 1 is the stock head specs of a 706 but that is on a 5.3 engine. Is the compression closer to 11:1 on a LS1 block?
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Old 12-16-2010, 02:04 PM
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With the stock MLS gasket the compression is 10.75:1 on the LS1 motor.
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Old 12-16-2010, 02:23 PM
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Originally Posted by JohnJanz@Texas-Speed
With the stock MLS gasket the compression is 10.75:1 on the LS1 motor.
thank you!
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