Reproduction HP manifolds

Mopar Exhaust Systems

  1. s5757s

    s5757s Well-Known Member

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    Any good/bad experiences out there with the reproduction big block HP exhaust manifolds from Year One Mopar Parts ?

    Thanks,

    Dick
     
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    • BeepBeepRR

      BeepBeepRR FBBO Gold Member FBBO Gold Member

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      Had a set and my friend has them on his 70 GTX no problems and fit well. The one downside is that Year One decided to cast their Y1 into the inside of each manifold. But thats just for the keen eyed people to rip you over. Sadly they didnt do the Y1 subtle either its pretty big in the casting.
       
    • dadsbee

      dadsbee FBBO Gold Member FBBO Gold Member

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      My money would be on a used set in the FBBO classifieds, not repros..
       
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      • barbee6043

        barbee6043 FBBO Gold Member FBBO Gold Member

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        ^^^^^^ The real deal can be found still today and at a fair price but you have to look!!
        Yep, I am NOT a YearOne guy!!
         
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        • s5757s

          s5757s Well-Known Member

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          I'm just trying to avoid any issues with hidden cracks, warpage, ect. Don't want to have to pull the motor on a freshly painted car. 64 Polara R/T.
          I do have a couple of local sources for used ones.

          Thanks for the comments
           
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          • yella71

            yella71 Well-Known Member

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            I cant see why anyone would buy repros when good originals are easy to find. and as far as year one casting their Y1 logo on them just grind it off if it offends....
             
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            • casey henson

              casey henson Well-Known Member

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              I have asked this same question and had good response. Haven't found any bad feedback yet.
               
            • Fizz66Coronet

              Fizz66Coronet Well-Known Member

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              Couple of sets for sale Detroit Craigslist
               
            • Don Frelier

              Don Frelier FBBO Gold Member FBBO Gold Member

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              64 Polara R/T? R/T started in 67
              Are you looking for hp manifolds or max wedge manifolds?
               
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              • s5757s

                s5757s Well-Known Member

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                Its a resto mod. The Polara that Dodge never built.
                 
              • moparedtn

                moparedtn Ed on the Ridge FBBO Gold Member

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                Ok, that part confused me. Why would one have to pull the engine to swap out exhaust manifolds?
                 
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                • s5757s

                  s5757s Well-Known Member

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                  The engine if offset to the passenger side leaving no room to get the manifold off the studs. The passenger side hp manifold (some years) is prone to cracking and unless you want to attempt a repair in place the engine has to be raised a crazy amount to gain the room for manifold removal.
                  Others may chime in but this is what I have been led to believe.
                   
                • moparedtn

                  moparedtn Ed on the Ridge FBBO Gold Member

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                  So you take loose the engine mount and jack the engine up to clear on that side....?
                  Wouldn't be the first time.
                   
                • pbiggs

                  pbiggs Well-Known Member

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                  Are the Y1 repos from Chinatown? If so, I'd be looking for used original ones.
                   
                • R/T

                  R/T Well-Known Member

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                  Cracks are visible, warpage is machinable.
                   
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