340 hp exhaust manifolds

Mopar Exhaust Systems

  1. Snake

    Snake Mopar Nut

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    To use the 340 hp manifolds,do i have to use the 90 degree oil filter,or is the straight on work.I ask because I am looking at a set of exhaust manifolds and the guy says i have to get the 90 degree oil adapter.Does not smell that good to me.This is for my 360 build.
     
  2. ValiantOne

    ValiantOne Well-Known Member

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    I had to. And I cannot see a way around it based on where the ps mannie routes.
     
  3. RustyRatRod

    RustyRatRod 30 Degrees Outta Whack FABO Gold Member

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    The manifolds dont smell good? That's weird. I am pretty sure they do require the 90* filter adapter if they are the early 340 manifolds.
     
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    • norton

      norton Doing the best that I can

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      Adaptor is required.
       
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      • Snake

        Snake Mopar Nut

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        This is why i ask you all rock.
         
      • oldkimmer

        oldkimmer FABO Gold Member FABO Gold Member

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        1968-70 need the adaptor. 71 up does not need it. Kim
         
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        • Snake

          Snake Mopar Nut

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          Interesting Whats the difference 68-70 vs 71-86 a bodies? teach me.
           
        • Treblig

          Treblig FABO Gold Member FABO Gold Member

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          The 71 and up 340 passenger's manifold is designed completely different from the pre-71 manifold. It has a much smaller exit hole (1 7/8") as opposed the older ones (2 1/4"). The older ones are more rare and more expensive than the newer ones.

          treblig
           
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          • norton

            norton Doing the best that I can

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            That's very strange because my 72 -340, numbers matching block has it.
             
          • 72SwingerJosh

            72SwingerJosh Well-Known Member

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            My 72 swinger 340 clone needed it to. Used the 1973 340 manifolds.
             
          • 318willrun

            318willrun Stomper 4x4... we kept energizer in business

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            I have used the '73 manifolds on a small block duster and never needed a adaptor
             
          • 67/6barracuda

            67/6barracuda Well-Known Member

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            I have a 73 340 drivers side and a magnum passenger side. No adapter and use the larger size oil filter. It worked out well.
             
          • oldkimmer

            oldkimmer FABO Gold Member FABO Gold Member

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            .......The 68-70 pass manifold exits to the rear on an angle right where the oil filter is.......the 71 up manifold exits straight down directly in the middle of the center 2 ports.........kim.....
             
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            • H22A4

              H22A4 Well-Known Member

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              Are you running the manifold pair/set that Treblig sells? If so can you post some pictures of the passenger side manifold that shows where the downpipe is relative to the transmission dipstick?
               
            • abodyjoe

              abodyjoe Well-Known Member

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              here are the early manifolds and yes you need the 90* adapter with them..

              [​IMG]
               
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              • 67/6barracuda

                67/6barracuda Well-Known Member

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                Yes, Treblig was a pleasure to do business with hes a straight forward guy and took the time to resource and research the proper exhaust manifolds to avoid the dreaded header headaches. I also had him weld up a drivers side elbow to get around the torsion bar. In the picture hopefully you can see the dip stick placement. I also shown the bigger oil filter on there as well. No need for a filter re-locator with the magnum passenger side exhaust. trans dip stick.jpg oil filter.jpg .
                 
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                • 273

                  273 Well-Known Member

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                  Buying them for looks or performance?
                  There's like a 3 hp difference between 360/340 manifolds.
                   
                • Treblig

                  Treblig FABO Gold Member FABO Gold Member

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                  Here are some pics of the 71 and up 340 passenger's manifold. Looks like these can be used without the oil filter adapter as well. I have many of these as you can see. Been planning on advertising them but haven't had time?? I have a few more besides these.

                  treblig

                  DSC07146.JPG DSC07147.JPG DSC07148.JPG
                   
                • ScampMike

                  ScampMike Despicable Damn Yankee FABO Gold Member

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                  you got any pics of the manifolds this guy is trying to sell you? the 340 pieces (like abodyjoe is showing in post 15) are (from what I know) quite rare and can be expensive.. can I ask you how much he wants for them?
                   
                • ScampMike

                  ScampMike Despicable Damn Yankee FABO Gold Member

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                  you could also just use a filter relocation kit
                   
                • Treblig

                  Treblig FABO Gold Member FABO Gold Member

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                  I have one driver's side 60's 340 manifold but it's promised to member "rockramcharger". I haven't heard back from him in quite a few weeks but he has sent me a deposit on a set of 340/360 manifolds.:

                  DSC07150.JPG DSC07151.JPG

                  treblig
                   
                • ScampMike

                  ScampMike Despicable Damn Yankee FABO Gold Member

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                  :thumbsup: - um... I was asking Snake about the ones he is thinking of buying... but thanks!! :lol:
                   
                • Snake

                  Snake Mopar Nut

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                  no pics Mike but i have seen them there the 68-70 HP the hard to get he want 450,with the 340 oil adapter.
                   
                • abodyjoe

                  abodyjoe Well-Known Member

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                  not a bad price if they are in decent shape.
                   
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                  • ScampMike

                    ScampMike Despicable Damn Yankee FABO Gold Member

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                    do it - then, like I said, go with a remote filter system if you don't want to use the 90. Your buddy is correct, will need one or the other with those manifolds.
                     
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