head bolt sealer

Discussion in 'Engine Topic' started by HULKZ28, Jun 6, 2015.

  1. HULKZ28

    HULKZ28 Veteran Member

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    im using arp head bolts on my 422 alum head motor..arp says to use thread sealer or assy lube on the threads..don't certain bolts need silicone to seal out coolant??
     
  2. Dogwater

    Dogwater Veteran Member

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    Yep. Use Permatex thread sealant. Small white tube, might need 2 of um.
     
  3. BIG CHEVY

    BIG CHEVY Veteran Member

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    i have arp bolts. i used permatex 2 per advice from this forum on them. there are ZERO leaks. glad i did. thats just my experience. but i did use a lubricant they sent with them under the heads of the bolts and each side of the washer. make certain the washers are turned correct.
     
  4. Dogwater

    Dogwater Veteran Member

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    Don't put any lube on the threads when using thread sealant!!! The sealant itself will be the lube. Dig??
     
  5. COPO

    COPO Veteran Member Lifetime Gold Member

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    I use Permatex 2.
     
  6. WebbGM

    WebbGM Veteran Member

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    repair

    Liquid Teflon. Used it for years no problem acts as a lube also
     
  7. Damon

    Damon Veteran Member

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    For a million years I've used Indian Head Gassket Shellack on the threads. It's similar to Permatex #2.

    The head of the bolt and the washer need LUBRICATION, however, to assure proper torque. You can use motor oil or the lubricant that ARP recommends, just make sure you use their torque specs depending on which you use.

    If in doubt, use 65 ft/lbs in 3 steps. 35, 55 and 65.
     
  8. HULKZ28

    HULKZ28 Veteran Member

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    Thanks guys
     
  9. joeEZ

    joeEZ Veteran Member

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    At Napa, Permatex pn 765-1188. Thread sealer with Teflon. Comes in a 4 oz.container with applicator brush. Use the ARP lubricant on both sides of the washer and under the bolt head as mentioned above.

    [​IMG]
     
  10. rocket dawg

    rocket dawg Veteran Member

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    Thats the stuff I used for years---no leaks ever--
     

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