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Old 06-02-2019, 11:27 PM   #1
Bushman66
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What sealant on 292 Head bolts?

Got the head off, and the bolts look great, I did see that there was remnants of some kind of sealing compound on the threads. I have a thread cleaning chaser tap coming, didn't want to use my threading taps to clean up the threads in the block. I read that the torque rating is 90-95 Ft/lbs,tightened in a spiral pattern from center out. I'll probably torque in stages, 30/60/95...I've had good luck using that method through the years.

My question...what type of sealant do you use on the bolts? Plain old black RTV silicone? Assuming just a small dab on the threads to keep water from seeping?

Thanks!
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Old 06-03-2019, 11:39 AM   #2
chevy_mike
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Re: What sealant on 292 Head bolts?

I used liquid Teflon thread sealant (like the tape stuff but in liquid form). I have used RTV before but it can be a pain to get off down the road.
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Old 06-03-2019, 04:55 PM   #3
68Gold/white
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Re: What sealant on 292 Head bolts?

I have used RTV, but now use the teflon stuff, also. My engine builder said to...

I coat the entire threaded end of the bolt. No interest in having water in my oil...
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Old 06-03-2019, 04:57 PM   #4
Bushman66
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Re: What sealant on 292 Head bolts?

Thanks guys!
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Old 06-03-2019, 06:59 PM   #5
cadillac_al
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Re: What sealant on 292 Head bolts?

I have never tried the liquid teflon. I can't imagine anything being better than old Permatex #2. I don't change my ways very often. Maybe somebody here has tried both and can enlighten me lol.
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Old 06-04-2019, 08:44 PM   #6
crazy longhorn
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Re: What sealant on 292 Head bolts?

I have used form a gasket aviation, rtv, ect.....the last 3 builds that I did, were liquid teflon. No issues at all.....I am also old school, but the liquid teflon works longhorn
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Old 06-06-2019, 02:19 AM   #7
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Re: What sealant on 292 Head bolts?

Machined and built literally 100s of these inline six for fleet service back in the day. Some came back later with over 300k miles. Permatex #2 form-a-gasket always worked fine.
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