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Torque of header bolts?

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Old 02-26-2006, 02:30 PM
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Default Torque of header bolts?
How much should header bolts be torqued down to?
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Old 02-26-2006, 02:43 PM
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I wouldn't use a torque wrench. Just go easy on them with a 3/8" drive rachet or box wrench. If it leaks snug them up some more.

I'll look it up for you anyways....hold on.
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Old 02-26-2006, 02:46 PM
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18ft-lbs
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Old 02-26-2006, 02:46 PM
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11ftlbs 1st run, then tighten to 18ftlbs
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Old 02-26-2006, 02:49 PM
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Stock is 11 lb ft first pass, starting with the center bolts and alternating outward, then a final pass, same sequence to 18 lb ft.
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Old 02-26-2006, 02:51 PM
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The GM service manual for the 2002 5.7L lists a first pass tightening spec of 11 lb/ft, and final pass spec of 18 lb/ft. That is not a lot of force. Be careful.

Edit: I'm too slow
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Old 02-26-2006, 02:58 PM
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Originally Posted by ShevrolayZ28

Edit: I'm too slow
LOL Same here, was answered by the time I looked it up, posted and hit submit.
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Old 02-26-2006, 05:35 PM
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you are using the stock GM gaskets, right?
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Old 02-26-2006, 05:44 PM
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Just did a set of Kooks today. 18 ftlbs.
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Old 02-26-2006, 05:45 PM
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& heads too
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Old 02-26-2006, 05:51 PM
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Originally Posted by davered00ss
& heads too
You baller......
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Old 02-26-2006, 05:59 PM
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Spent all weekend on a friends car.
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Old 02-26-2006, 06:05 PM
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Does a torque wrench actually fit in there. I can see getting maybe the first 1 or 2 on each side but what about the rest of them. Just curious since I will be doing headers soon.
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