Heat Riser Valve

Slant 6 Engines

  1. RustyRatRod

    RustyRatRod Lemmie see your b00bs. FABO Gold Member

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    Does anyone offer a heat riser valve kit new for the slant six?
     
  2. Charrlie_S

    Charrlie_S Well-Known Member

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    Not as far as I know. I have been searching, on and off for years.
     
  3. RustyRatRod

    RustyRatRod Lemmie see your b00bs. FABO Gold Member

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    Thanks, @Charrlie_S ! I have several extra manifolds. I guess I can swap one over.
     
  4. toolmanmike

    toolmanmike FABO MODERATOR Staff Member FABO Gold Member

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    They make them for Hemi's but not for slants. :mob::mob::mob::lol:
     
  5. RustyRatRod

    RustyRatRod Lemmie see your b00bs. FABO Gold Member

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    Well, it IS a hillside Hemi. lol
     
    • Agree Agree x 1
    • BillGrissom

      BillGrissom Well-Known Member

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      Mine was rusted and jammed in my 1969 Dart slant, so I cut it out and used a bolt and serrated nut to plug each hole (separate ones, don't clamp across w/ a single bolt or you could crack the manifold). I don't think it made much difference in Atlanta. Even in the days of TBI, I don't think the heat riser was needed, nor the exhaust cross-over in the intake manifold of V-8's. Since MPFI of the mid-1990's, they definitely didn't have them.
       
    • RustyRatRod

      RustyRatRod Lemmie see your b00bs. FABO Gold Member

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      This is on the one that Freddie opened up to 2 1/2" for me. It didn't have a heat riser valve. I may try it without one and see how it does.
       
    • Slantsix64

      Slantsix64 Well-Known Member

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      Just weld the top of the exhaust manifold where that 3 hole metal gasket goes so it won’t leak and weld the holes where the original heat riser inserted and attach it together, that’s how I ran my slant for years kept the manifold nice and warm.
       
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