Best thread sealer for header bolts BB
#2722911
12/10/19 11:07 AM
12/10/19 11:07 AM
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Joined: Aug 2005
Posts: 1,378 Az
69hemibeep
OP
pro stock
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OP
pro stock
Joined: Aug 2005
Posts: 1,378
Az
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What do you guys use for the holes that go into the water jacket?
1969 Hemi Roadrunner 2nd owner
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Re: Best thread sealer for header bolts BB
[Re: 69hemibeep]
#2722912
12/10/19 11:08 AM
12/10/19 11:08 AM
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Joined: Jan 2003
Posts: 13,319 Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,319
Marion, South Carolina [><]
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Teflon paste like Permatex.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: Best thread sealer for header bolts BB
[Re: an8sec70cuda]
#2722932
12/10/19 12:37 PM
12/10/19 12:37 PM
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Joined: Jun 2004
Posts: 3,365 St. Charles, MO
wingman
Uncreative Title
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Uncreative Title
Joined: Jun 2004
Posts: 3,365
St. Charles, MO
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Teflon paste like Permatex. This has worked for me as well. As mentioned, you will get much more reliable sealing with studs vs. bolts. I can attest that they make fitting headers more challenging on a BB B-body, but it can be done.
1969 Dodge Coronet Super Bee 383 A4 1970 Plymouth Road Runner 440 FC7 (sold)
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Re: Best thread sealer for header bolts BB
[Re: moparx]
#2722947
12/10/19 01:24 PM
12/10/19 01:24 PM
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Joined: Aug 2005
Posts: 1,378 Az
69hemibeep
OP
pro stock
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OP
pro stock
Joined: Aug 2005
Posts: 1,378
Az
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This is for bolts not studs right?
1969 Hemi Roadrunner 2nd owner
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Re: Best thread sealer for header bolts BB
[Re: moparx]
#2722967
12/10/19 02:10 PM
12/10/19 02:10 PM
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Joined: Apr 2003
Posts: 1,331 Clinton, NJ
njmopar
pro stock
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pro stock
Joined: Apr 2003
Posts: 1,331
Clinton, NJ
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For my manifold studs I used Loctite 577 along with the 7649 activator. Tried all regular autopart store sealant items, none worked. Got the 577 from Grainger.
Last edited by njmopar; 12/10/19 02:11 PM.
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Re: Best thread sealer for header bolts BB
[Re: Uberpube]
#2723360
12/11/19 09:29 PM
12/11/19 09:29 PM
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Joined: Nov 2005
Posts: 15,118 85086
moparpollack
Lil Herman
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Lil Herman
Joined: Nov 2005
Posts: 15,118
85086
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Stealth heads! Otherwise I used Indianhead sealant.
56 Plaza 63 D100 step side 67 Coronet, 68 Roadrunner, 69 Super Bees, 69 Coronet 500 convertible, 70 Roadrunner Post, 79 D150 360, and a severe case of Mopar a,d,d
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