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Valve cover bolt torque specs.

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Old Jan 8, 2019 | 09:24 PM
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Default Valve cover bolt torque specs.

LS3 valve cover bolts ? What should they be torqued to ?
Or is it like the old school. Just tighten and then one more turn??

Thanks
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Old Jan 8, 2019 | 09:46 PM
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106 lb in I believe
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Old Jan 9, 2019 | 12:00 AM
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Originally Posted by Buddy A
106 lb in I believe
Page 6-14 of my 2006 Service Manual agrees. Torque spec for the "Valve Rocker Arm Cover Bolts" is 106 lb in. I strongly suspect the LS3 is exactly the same.

They're squishing a rubber seal anyway so the whole thing is pretty loosey-goosey.
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Old Jan 9, 2019 | 09:42 AM
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All LS3 Torque Specs
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Old Jan 9, 2019 | 01:26 PM
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Man 106 seems like a lot to me on those small long bolts.
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Old Jan 9, 2019 | 02:49 PM
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Originally Posted by ptroxx
Man 106 seems like a lot to me on those small long bolts.
inch pounds i believe
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Old Jan 9, 2019 | 05:31 PM
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Originally Posted by rsb213
inch pounds i believe
that makes more sense. I know something was weird.
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Old Jan 10, 2019 | 09:08 PM
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~9 ft lbs
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Old Jan 11, 2019 | 09:09 PM
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lb’s INCH. Finger tight.

Too tight and they will snap off in the head. Then you may get to pull the head. Ask me how I know. LOL.
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Old Jan 14, 2019 | 11:59 AM
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Originally Posted by jashmore1234
lb’s INCH. Finger tight.

Too tight and they will snap off in the head. Then you may get to pull the head. Ask me how I know. LOL.
Aren't the heads aluminum? How did you manage to snap off the bolt before stripping the threads?
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Old Jan 14, 2019 | 04:52 PM
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Originally Posted by RogerRamjet21
Aren't the heads aluminum? How did you manage to snap off the bolt before stripping the threads?
I have broken one of these bolts before. I was torquing with a proper torque wrench to the 106 in-lb. For whatever reason, the wrench never clicked and the bolt broke. I think the bolt must have been weak to begin with because it did not take much force at all. Luckily, the broken part unthreaded from the head very easily.
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