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LS7 lifter preload

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Old Jul 9, 2008 | 04:03 PM
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Michael V's Avatar
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Default LS7 lifter preload

Is anyone running .100" preload on these? What is the average?

Mike V
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Old Jul 9, 2008 | 04:25 PM
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i dont even know how to or what preload is.... all i know is, i soaked em in oil for a day or 2, installed them, and everythings fine
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Old Jul 9, 2008 | 04:27 PM
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.045 to .060 for me and that makes me feel good. i would think .100 is absolute max.
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Old Jul 9, 2008 | 04:41 PM
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I'm running about .100, everything fine so far. Only got acouple hours on the motor.
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Old Jul 9, 2008 | 05:09 PM
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I ran my LS1 lifters (same design) at 0.125" without issue although I wasn't wholly comfortable with that.
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Old Jul 9, 2008 | 07:10 PM
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i run mine at .040 with no problem, I read on here that they max out at like .140 and running them at half that is normal, so .070 would be normal preload, mine sound good at .040.
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Old Jul 9, 2008 | 07:42 PM
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I run mine at .090-.100 thay seem to make less noise that way.
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