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  1. #1
    Join Date
    Nov 2007
    Location
    Towson, MD, USA
    Posts
    181

    Default Chrysler 440 exhaust manifold gaskets

    I used the green gaskets from Osco about 5 years ago on my exhaust system. I developed an exhaust leak. I found the exhaust maniflod gaskets had blown out the bottom of the manifold/head joint. I will be using header gaskets this time. I also noticed the gaskets on the risers had worn out. The joint between the exhaust manifold and riser had the water jacket holes worn through. Normally the gasket keeps these holes blocked. My maniflods and risers are raw water cooled and engine block is fresh water (antifreeze). No water got into the exhaust chamber. I wonder how this would effect the cooling or engine performance? It seems like a metal gasket would be better, but they are always paper. Is there a better gasket/ source?

    Thanks.

  2. #2
    Join Date
    Mar 2007
    Location
    West Hartford, CT,
    Posts
    76

    Default Re: Chrysler 440 exhaust manifold gaskets


  3. #3
    Join Date
    Jun 2008
    Location
    Island Heights, NJ,
    Posts
    3,491

    Default Re: Chrysler 440 exhaust manifold gaskets

    Quote Originally Posted by captain_ed View Post
    I used the green gaskets from Osco about 5 years ago on my exhaust system. I developed an exhaust leak. I found the exhaust maniflod gaskets had blown out the bottom of the manifold/head joint. I will be using header gaskets this time. I also noticed the gaskets on the risers had worn out. The joint between the exhaust manifold and riser had the water jacket holes worn through. Normally the gasket keeps these holes blocked. My maniflods and risers are raw water cooled and engine block is fresh water (antifreeze). No water got into the exhaust chamber. I wonder how this would effect the cooling or engine performance? It seems like a metal gasket would be better, but they are always paper. Is there a better gasket/ source?

    Thanks.

    If your manifolds and "risers" a.k.a. elbows are raw water cooled, the water passage holes in the joint between the manifold and the elbow are usually open, unless in your particular application, the elbows have their own raw water feed hose.
    Capt Bob
    1969 23ft ChrisCraft Lancer
    Merc 5.7L 260HP/ Volvo 280

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