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ls9 head gasket + ls1 heads + ls1 lifter = what pushrod

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Old 02-04-2011 | 11:32 PM
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Default ls9 head gasket + ls1 heads + ls1 lifter = what pushrod
Will running LS9 head gaskets on unmilled ls1 heads require longer pushrods? I know they're thicker than the factory mls ls1 gaskets, but I am having trouble finding the difference between the two.
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Old 02-04-2011 | 11:36 PM
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you mostlikley are ok if the LS9 gaskets are slightly thicker the lifters will make up for it shouldnt be a problem, you could use a push rod checker
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Old 02-05-2011 | 09:52 AM
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= get a push rod length checker, and check!

Sean
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Old 02-05-2011 | 10:24 AM
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you will not need a different sized pushrod
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Old 02-05-2011 | 11:12 AM
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ls9 gaskets are the same thickness just more layers i thought.... maybe i am wrong
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Old 02-05-2011 | 01:05 PM
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What cam? THats a big variable there...
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Old 02-05-2011 | 07:17 PM
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Originally Posted by Broke EF
= get a push rod length checker, and check!

Sean
words of wisdom right there....
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Old 02-05-2011 | 07:30 PM
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Originally Posted by rotary1307cc
words of wisdom right there....
thats obviously the best thing to do, but when your on a tight time schedule, it doesn't hurt to ask ahead of time to make sure you have the right parts before you tear the car apart
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Old 02-06-2011 | 11:10 AM
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The cam base circle can skew the results if you are trying to do the math on paper. If its a stock cam, and the LS9 gasket, you could go 7.400. If its an aftermarket cam, you need a 7.425 to 7.450.
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Old 02-06-2011 | 12:44 PM
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Gonna have to check with length checker. Like mentioned before cam affects final measurement and also if heads have been milled. If correct length pr are not used it will affect valvetrain geometry
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Old 02-08-2011 | 10:56 PM
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LS6 cam...LS1 lifters, and stock unmilled LS1 heads. Ordered a PR checker today just to be safe. Figure I will use it again in the future anyway.
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