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What thread sealer for the head bolts?

LT1-LT4 Modifications 1993-97 Gen II Small Block V8

What thread sealer for the head bolts?

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Old

Jun 22, 2011 | 05:44 PM

#1

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What thread sealer for the head bolts?

What ever is on mine is white and hard to get off

Al 95 Z28 going back together

Old

Jun 22, 2011 | 06:04 PM

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Permatex thread sealant is what I've used for years and it's white.

Old

Jun 22, 2011 | 08:46 PM

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Yep, Loctite makes something similar, thread sealant, white.

Old

Jun 22, 2011 | 08:56 PM

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I used permatex #2.

Old

Jun 22, 2011 | 11:39 PM

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Quote:

Originally Posted by Big Al

What ever is on mine is white and hard to get off

Al 95 Z28 going back together

sounds like your chick is broken lol

on a side note theres a recent thread with pics of thread sealer. just any thread sealer will probably do

Old

Jun 23, 2011 | 07:55 AM

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Stay away from the moly and/or Teflon based thread "sealers" on the market. They can wash away when exposed to the environment of an engine's internals.

A nice sticky Permatex gasket goop will work great and stay put.

Last edited by Paul Bell; Jun 30, 2011 at 09:57 PM.

Old

Jun 23, 2011 | 09:45 AM

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NOTHING BUT Permatex 59235. You'll need the 50ml tube- plenty to do the head and intake bolts with some left over. The little tubes you'll need 7-8 of...

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Old

Jun 23, 2011 | 09:47 AM

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I have always used Black RTV and that was with ARP bolts. You can run a tap and due on the block and bolts if your reusing. Make sure the bolts are not TTY

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Old

Jun 23, 2011 | 12:20 PM

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HMMM. Permatex 59235 "contains PTFE." This is Teflon.

Old

Jun 23, 2011 | 02:00 PM

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What is the proper technique when applying? Do you use it on all the head bolts?

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Jun 23, 2011 | 02:34 PM

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I use ARP sealer on the threads and ARP lube on the washers and heads. never had a leak in 14 years

Old

Jun 23, 2011 | 11:01 PM

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Quote:

Originally Posted by Paul Bell

HMMM. Permatex 59235 "contains PTFE." This is Teflon.

No evil in that. Don't get hung up on the non-friction aspect of the Teflon ingredient among many others. It's appropriate in both the Permatex and ARP formulas because of its non-reactive properties in corrosive chemical environments. Like what happens to oil in the presence of crankcase / exhaust gases...

Quote:

Originally Posted by TwoFast4Lv

I use ARP sealer on the threads and ARP lube on the washers and heads. never had a leak in 14 years

ARP 100-9904 Sealant Thread Sealer is also Teflon-inclusive. And this guy has no problems with it over the last 14 years.

Old

Jun 24, 2011 | 12:23 AM

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Quote:

Originally Posted by Paul Bell

Stay away from the moly and/or Teflon based thread "sealers" on the market. The can wash away when exposed to the environment of an engine's internals.

A nice sticky Permatex gasket goop will work great and stay put.

WHAT??

You want HI TEMP... Teflon is fine

Old

Jun 24, 2011 | 12:40 AM

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how much are you supposed to put??

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Jun 24, 2011 | 01:04 AM

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Fill the threads...

Old

Jun 24, 2011 | 07:12 AM

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Seriously guys, this has been discussed over and over.

Permatex Indian Head used to be the sealer of choice but High Tack is better. It's impervious to oils, fuels, coolants and temperature cycles. Years down the road, pull the head bolts/studs and High Tack is still coating the threads.

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bolts, head, high, issues, lt1, need, permatek, permatex, sealant, sealer, sealing, studs, tack, thread, type

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