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Thread sealer on LS1 block?

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Old May 13, 2009 | 09:50 PM
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Default Thread sealer on LS1 block?

Just a quick question concerning LS1 block: Do I need to apply any thread sealer on any of the head studs on the block side??? -Thanks in advance!
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Old May 13, 2009 | 10:14 PM
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Good question, I'd like to know also. Bump.
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Old May 13, 2009 | 11:18 PM
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Originally Posted by Boo"SS"t
Just a quick question concerning LS1 block: Do I need to apply any thread sealer on any of the head studs on the block side??? -Thanks in advance!
For the head studs just use the ARP assembly lube. That's all you should need.
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Old May 13, 2009 | 11:48 PM
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So, are you saying that none of the threaded holes on the engine block actually goes thru any water jackets? I used to put thread sealer on my LT1 application but not sure on the LS1 if I have to.
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Old May 14, 2009 | 12:34 AM
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The head bolt holes are blind, no sealant needed.
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Old May 14, 2009 | 08:25 AM
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Thanks!
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Old May 14, 2009 | 08:59 AM
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Originally Posted by kp
The head bolt holes are blind, no sealant needed.
Yep, just a slight amount of assembly lube is all that is needed.
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Old May 14, 2009 | 04:20 PM
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Yep, as the others said, the holes are blind. No worries man.
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Old May 14, 2009 | 04:24 PM
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Good Info, thanks for starting the thread
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