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Technical 392 Valve Cover Bolts?

Discussion in 'Traditional Customs' started by All American 6, Apr 30, 2025.

  1. All American 6
    Joined: Sep 25, 2012
    Posts: 284

    All American 6
    Member

    Can someone tell me which valve cover bolts go into water or oil.
    Edit: Hot Heads answered - 1, 2, & 3 go into water.

    I believe only 1 and 3 go into water. I'm almost certain that 4, 5, & 6 are blind. I think 2 is also blind.


    Appreciate it. (I understand the exhaust 4 lower go into water and 3 upper into oil)

     
    Last edited: May 1, 2025
  2. Bandit Billy
    Joined: Sep 16, 2014
    Posts: 15,963

    Bandit Billy
    ALLIANCE MEMBER

    I don't know but on my Desoto Hemi, I learned to treat them all as wet bolts. As well as the exhaust bolts. Leaky sum*****
     
    deathrowdave and All American 6 like this.
  3. Russ B
    Joined: Jun 13, 2010
    Posts: 1,596

    Russ B
    Member

    I quickly changed from bolts to studs after having water leaks during break-in. During break-in valve covers need to be off if any valve lash adjustments are needed. Studs can seal out the water leaks
     
    All American 6 likes this.
  4. ClayMart
    Joined: Oct 26, 2007
    Posts: 7,793

    ClayMart
    Member

    I'd have never guessed that the early Hemis had valve cover bolts that went into water or oil p***ages. Sure sounds like a good excuse to convert to studs and nuts.
     
  5. deathrowdave
    Joined: May 27, 2014
    Posts: 5,032

    deathrowdave
    ALLIANCE MEMBER
    from NKy

    Studs with lock***e thread sealer is your friend . I never had one clue , Hemi rocker cover bolts hit water.
     
  6. All American 6
    Joined: Sep 25, 2012
    Posts: 284

    All American 6
    Member

    The engine had studs with the chrome steel covers that were installed when I bought the car. The M/T's won't fit over the studs - the valve cover hits the firewall when lifting over the stud. I will have to use bolts. I bought the right bolts from Hot Heads: 5/16-18x2.5

    I did get the stud kit for the exhaust. I took that first exhaust bolt out and water started running out. I thought I had a cracked head. I ran to the Hamb for some quick research.


     
    Last edited: May 1, 2025
  7. bangngears
    Joined: Aug 30, 2007
    Posts: 1,322

    bangngears
    Member
    from ofallon mo

    Studs from the factory. If you change to bolts use Ultra-Copper.
     
  8. Ahh, the morning Chuckle. Life is a continuing education course, and we will always need to modify those lessons to make things work in the Hot Rod hobby. And when I took my first Hemi apart I thought the factory was just making things difficult.
     
    All American 6 likes this.
  9. Johnny Gee
    Joined: Dec 3, 2009
    Posts: 14,353

    Johnny Gee
    Member
    from Downey, Ca

    2 1/2” long valve cover bolts?
     
    All American 6 likes this.
  10. All American 6
    Joined: Sep 25, 2012
    Posts: 284

    All American 6
    Member

    Johnny Gee likes this.
  11. All American 6
    Joined: Sep 25, 2012
    Posts: 284

    All American 6
    Member

    & Hot Heads just replied. 1, 2, and 3 go into water.
     
    Okie Pete likes this.

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