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ls2, l92, ls7, lq9 head lifting???

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Old Nov 12, 2007 | 03:18 PM
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Default ls2, l92, ls7, lq9 head lifting???

Generally speaking...at what psi do these heads begin lifting from the blocks? Are they all four bolts per cylinder?

Is the LSX block the only one that can handle 2o+ psi w/o pushing water?
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Old Nov 12, 2007 | 03:56 PM
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With fresh head gaskets I start to push a lil water around 22 psi. With agressive timing and 20 psi. Push a lil after the gaskets have been on there a while.

Read the ohio boys thread in this section and theres some good info in there.

Kyle
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Old Nov 12, 2007 | 04:49 PM
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thanks kyle. Are you running a 370?
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Old Nov 12, 2007 | 04:56 PM
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Originally Posted by memphisTa
thanks kyle. Are you running a 370?


I was running a 370..... A few more cubes with the new motor
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Old Nov 12, 2007 | 04:56 PM
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I'm running an LS6 block + Allpro heads, I'm on my second set of head gaskets for this shortblock for the last 3 years. I have not made a ton of passes but it's never gotten jacked up.
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