Big Block Exhaust Manifolds

Mopar Exhaust Systems

  1. Bill Monk

    Bill Monk FBBO Gold Member FBBO Gold Member

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    I need to refinish mine, the front and rear studs/bolts go into the water jacket on both sides right or is it just the front?
     
  2. oldbee

    oldbee FBBO Gold Member FBBO Gold Member

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    Pretty sure both.
     
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    • khryslerkid

      khryslerkid FBBO Gold Member FBBO Gold Member

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      I've found heads that the studs went into the water jacket just front and back. Then I've had ones that were in the middle also. I just make sure I use sealer on all of the manifold studs and bolts.
       
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      • BeeKool

        BeeKool Well-Known Member

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        Thread resurrection.
        But all of them as in ALL OF THEM? Just asking. Im putting HP manifolds on my 452 heads tomorrow evening.
        What sealer, Indian Head or equivalent shellac?
         
      • khryslerkid

        khryslerkid FBBO Gold Member FBBO Gold Member

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        I like to use the Permatex #2. Stays soft to a certain extent and I never had problems with a leak, even on intake manifold bolts. It will also let you re-torque the bolts later without causing a leak.

        I have the 452 heads on my 440. After installing headers I had the second stud back on the driver's side weeping. I had only used sealer front and back. It made me remember that I had seen this before years back. So I pulled each one and applied sealer to the rest of them. About three more were wet when I pulled them. I guess it all depends on how deep the holes were drilled. Be on the safe side and do them all.
         
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        • Bill Monk

          Bill Monk FBBO Gold Member FBBO Gold Member

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          I agree on the permatex 2
           
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