318 exhaust manifold help.

Mopar Exhaust Systems

  1. pyrojim

    pyrojim Well-Known Member

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    Can someone identify these for me please? I think they're out I'd a 78 Volare. Also, are they supposed to have heat shieds?? Going into a 66 dart. Can I lose the butterfly valves??
    Thanks.
    Jim
     

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  2. 70DartMike

    70DartMike Too many projects

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    • rumblefish360

      rumblefish360 So close, yet so far away FABO Gold Member

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      You can loose the butterfly valve if you want just by drilling out the pin fulcrum point. A da. Of JB Weld will do.
       
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      • 66fs

        66fs Well-Known Member

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        Looks like a set of 64-66 A body manifolds by the numbers. I take out the butterfly, shaft and all, and tap the manifold for bolts. It will warm up slower but it can never stick shut. Maybe a bit more flow. Pre smog, no shields.
         
      • 66plyValiant

        66plyValiant Well-Known Member

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        if there from a volare they will not clear the steering in an early A, been there

        dakota ones sort of clear if you do some light trimming
         
      • pyrojim

        pyrojim Well-Known Member

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        Thanks, that's good info. I got this as a basket case, it's a 66 dart originally 273, but came with the 318 out of a 78 volare or aspen??
         
      • 66fs

        66fs Well-Known Member

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        That may be it, but used the 66 exhaust manifolds. They are the only ones that fit nice.
         
      • 66plyValiant

        66plyValiant Well-Known Member

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        be there as well, 66 manifolds on the later 318 leak like crazy, same ports for exhaust, but all 70s engines have air ports below exhaust for pollution (even if they didn't have pollution pumps they had the ports)
         
      • pyrojim

        pyrojim Well-Known Member

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        I should have stated he had 360 heads and the exhaust manifolds have been ported to match.
         
      • 4spdragtop

        4spdragtop Well-Known Member

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        If you wanna get rid of the heat shields, I may be interested?? Dad has 67 273 cuda, his orig shields are rough. As abv posters said, I know 2465847 is for 273 for sure...Id have to chk manual on the other, but makes sense they are orig to the car.
         
      • pyrojim

        pyrojim Well-Known Member

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        But unfortunately, the engine isn't. And, I guess I didn't get the shields?
        Sorry
         
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