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LS1 head bolt queation...

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Old 02-13-2017, 10:08 AM
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Default LS1 head bolt queation...

Being an aluminum block with steel head bolts, are the bolts coated to prevent galvanic corrosion? Any problems with stripped threads as a general issue?
Old 02-13-2017, 08:22 PM
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Default Head Stud Installation Method

Hi, NO, YOUR CORRECT CASE, IS "NEVER" observed here.

They will ALWAYS strip on the 2nd/3rd Torque.
.
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Old 02-13-2017, 11:12 PM
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I'm under the impression that the GM bolts need to be replaced if removed.
Old 02-14-2017, 06:51 AM
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They are TTY, so technically they aren't reusable.

I've never bought new head bolts lol.
Old 02-14-2017, 12:34 PM
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I don't think galvanic corrosion is much of an issue where the two materials are not subjected to moisture and head bolts are not as long as the holes are clean and dry when the heads are installed. New bolts are relatively cheap and they will ensure a good installation. It wouldn't be much fun to have to remove a head to fix a broken head bolt on the final torque sequence. Reused bolts might also be more prone to head gasket failure. Head gaskets are under extreme pressure at times and it doesn't take much to blow the gasket if a bolt allows the head to lift off of the block a few thousandths of an inch.
Old 02-14-2017, 06:11 PM
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Originally Posted by JoeNova
They are TTY, so technically they aren't reusable.

I've never bought new head bolts lol.
AND THE WORLD DIDN'T END!!!!!! Holy SHEEEET!!!!!! you're smarter than you know.



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