Is Permatex Blue Threadlocker Good to Use For 455 Front Cover?

Discussion in 'Street/strip 400/430/455' started by Clarkie, Jan 5, 2021.

  1. Clarkie

    Clarkie Well-Known Member

    I’m just about to reassemble the front of my 455. I know I’ve used Permatex Blue (24200) years ago when I built an SBC.

    Will it work to seal the water pump bolts that go into the water jackets of my BBB? I ask because I have some on hand and I want to make sure it will work.
     
  2. Bens99gtp

    Bens99gtp Well-Known Member

  3. hugger

    hugger Well-Known Member

    Is that all you have? No gasket maker of any kind?,...you must have some if you're putting the front cover on
     
  4. Clarkie

    Clarkie Well-Known Member

    Yes, I have these two options. Not sure which one I’m going to go with.
     

    Attached Files:

  5. Quick Buick

    Quick Buick Arlington Wa

    NEITHER....... use Pipe tread sealant.... Post 2 above...
     
  6. Clarkie

    Clarkie Well-Known Member

    I was thinking that Hugger meant what I’m planning on using on the gaskets.
     
  7. Max Damage

    Max Damage I'm working on it!

    If both surfaces are clean and flat you don't need that. Everyone has their own routine though...

    I like to use a very small amount of Hi tack or Gascacinch to stick the pump asket to the water pump(then the pump gasket) and the timing case(then the timing case gasket, I leave the other side dry. I do remember using RTV once when the timing case looked kind of uneven to me (someone else car). Just use the smallest amount if you do this.

    my 2c
     
  8. Quick Buick

    Quick Buick Arlington Wa

    So what do you use on the 3 bolts that penetrate into the water jacket....

    Thats what Clark is asking about...
     
    Dano likes this.
  9. Quick Buick

    Quick Buick Arlington Wa

  10. Max Damage

    Max Damage I'm working on it!


    I like Teflon tape, but I wouldn't run it all the way to the end of the bolts....
     
  11. Clarkie

    Clarkie Well-Known Member

    This is what I got. It should work well.
     

    Attached Files:

    1973gs and john.schaefer77 like this.
  12. hugger

    hugger Well-Known Member

    I just use whatever gasket maker I have close by on the bolt threads,..makes zero difference whatsoever

    And my reply was directed to the fact you must use sealer in the bottom corner of the timing cover
     
    Last edited: Jan 6, 2021
    72STAGE1 likes this.
  13. 1969RIVI

    1969RIVI Well-Known Member

    I was told/read to use a sealant on the threads and an antisieze on the shaft for the long bolts going through the water passage. Or is it the other way aroundo_O I can't remember but I do know I put two different products on the bolts before putting them in the timing cover:).
     
    1973gs likes this.
  14. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    I used Locktite 592 on the ends of the 4 long bolts. I used a light coating anti seize on the rest of the threads for the timing cover.
     
    john.schaefer77 likes this.
  15. hugger

    hugger Well-Known Member

    The bolt shafts don't touch the cover,...no real need to antiseize them no water will get in that cavity unless there is a gasket failure or no sealant is used,.. certainly nothing wrong with doing it but I wouldn't go out of my way

    You gotta remember when the bolts are seized up in there your also talking about one that's been together and not serviced for 30+ years
     
  16. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    X2, those little bolts around the water pump, I always use anti seize on them, every time I take them apart.:)
     
    446370 likes this.
  17. Jim Weise

    Jim Weise EFI/DIS 482

    True.. but in this part of the world they corrode like mad, I have had the plain steel factory bolts litterally become one with the cover. But this is on factory stock motors that are 50 years old or so, and have been sitting around in the elements for who knows how long. I don't worry so much about it on rebuilds, very few of them will be together for 50 years, and I don't put them together with plain steel bolts.

    Use some type of gasket sealer on the gasket.. this is what I am doing lately in the shop:

    Permatex Super Hi Tack gasket adhesive to adhere the gasket to the block, and align it. This holds the gasket securely in place during assembly, and keeps it from "squeezing out" which is usually how they start leaking.. then use regular hi tack on the timing cover side of the gasket... follow the instructions carefuly on both sealers.

    You will need a little dab of "the right stuff" in the oil pan/timing cover joint..

    I agree with Ethan that whatever gasket sealer is around is fine for the bolts.. although I always have liquid teflon sealer available, and use that. Only the two bolts on the driver side that go thru the water pump have to be sealed. The two long ones on the passenger side go into blind holes on the block.

    I have attached links to the various sealers I mentioned.

    https://www.permatex.com/products/gasketing/gasket-sealants/permatex-super-high-tack-gasket-sealant/

    https://www.permatex.com/products/gasketing/gasket-sealants/permatex-high-tack-gasket-sealant/

    https://www.permatex.com/products/g...makers/permatex-the-right-stuff-gasket-maker/

    https://www.permatex.com/products/t...nts/permatex-high-performance-thread-sealant/

    JW
     
  18. Schurkey

    Schurkey Silver Level contributor

    Using a thread locker to seal bolts will "work", but it's not the best way to do it.

    Again, that's a product that "works", but it's absolutely, positively NOT the best product for the job.

    Not on bolt threads. Any one of a dozen different gasket sealer products (not RTV silicone) on the gasket, perhaps. RTV silicone, or The Right Stuff (which I think is polyurethane not silicone) only at the joint between gaskets or between gasket and rubber seal.

    Thread sealer--with a part number starting with "592" is EXCELLENT for sealing bolt threads, or for sealing pipe thread. Jim Weise suggests "565" which is in the same family of sealers as 592, 567, and some others in the Permatex/Loctite product array. They've all got PTFE/Teflon to prevent gauling the threads, and they all have an anaerobic hardener, similar to thread-locker that "cures" rather than merely "drying".

    565, 567, and 592 are all EXCEPTIONAL thread sealers. 592 is generally the easiest to source locally, tends to cost less, and is used by the OEMs on factory-installed threads. There's a solid version, too. Sold in a "Chap-Stick" kinda tube.

    "I" would anti-seize the bolt shanks of the bolts going into the water jacket after applying sealer to the threads...and I anti-seize the threads of EVERY bolt going into blind aluminum holes.
     
    Last edited: Jan 7, 2021
    69GS430/TKX likes this.
  19. hugger

    hugger Well-Known Member

    BS,..any rtv is fine on a bolt thread,..there are millions and millions of to threads with whatever was handy doin just fine ha
     
  20. Bens99gtp

    Bens99gtp Well-Known Member


    Pretty sure the one I link says right on the package in big letters...thread sealant with ptfe???????????
     

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