Safe to say I’m a bit lean

Mopar Performance Issues

  1. bschubarg

    bschubarg Well-Known Member

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    Working on a pair of 302’s
    This will be the before porting....

    22713418-A38F-440D-B088-8FF6127056A4.jpeg
     
  2. yellow rose

    yellow rose Doctor of Thinkology.

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    Doesn't look lean to me.
     
    • Agree Agree x 2
    • bschubarg

      bschubarg Well-Known Member

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      B7EBCFE5-451E-409B-9F2B-6979111E91DA.jpeg Stock....
       
    • DesertRat

      DesertRat FABO Gold Member FABO Gold Member

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      Me either, plug looks good.
       
    • bschubarg

      bschubarg Well-Known Member

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    • bschubarg

      bschubarg Well-Known Member

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      Doesn’t look lean? Good to know... wait to I finish butchering these heads with Home porting
       
    • toolmanmike

      toolmanmike FABO MODERATOR Staff Member FABO Gold Member

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      Port match, bowl blend and polish the chambers. Good heads and very efficient chambers.
       
    • 72Dart6pack

      72Dart6pack Well-Known Member

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      R.I.P 302 cylinder heads. It was nice knowing you. Lol
       
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      • dart4forte

        dart4forte FABO Gold Member FABO Gold Member

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        Just .02. If you don't flow the heads how do you know how to increase the flow numbers?

        Find someone with a flowbench, flow the heads to get a baseline then make gradual changes.
         
      • yellow rose

        yellow rose Doctor of Thinkology.

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        Ok, that was funny.

        I agree with getting the heads flowed before and after.

        Also, I suggest getting at least one or two more heads and practice on the other heads. Grind until you make a hole so you know what it looks and feels like. Learn how you use speed and pressure to get the shape you want. What you use and need may be different that what I use but that doesn't make one right and the other wrong.


        Work with different sized and shapes of cutters so you learn how each one changes the shape of what you are cutting on.

        SHAPE IS JUST AS IMPORTANT AS SIZE. Work to get the surface as flat as you can. You don't want a bunch of troughs and stuff on any surface.

        You'll never learn if you don't do. Keep us posted.
         
      • toolmanmike

        toolmanmike FABO MODERATOR Staff Member FABO Gold Member

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        My 273 heads. I didn't do them myself. I practiced on a extra 318 head I had but decided to leave it for the experts. I didn't get them flowed. Not big numbers because of the stock valves but they seem to work well.

        11_14_0.JPEG

        015.JPG

        016.JPG

        041600951718[01].jpg
         
      • toolmanmike

        toolmanmike FABO MODERATOR Staff Member FABO Gold Member

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        Going on a 318?

         
        Last edited: Dec 8, 2017
      • 68383GTS

        68383GTS Well-Known Member

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        Not me... I am a bit fat
         
      • bschubarg

        bschubarg Well-Known Member

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        One head done... not major porting but not minor either... going on my 318.

        image.jpg
         
      • bschubarg

        bschubarg Well-Known Member

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        Mostly chamber port
         
      • bschubarg

        bschubarg Well-Known Member

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        Before &after mostly chamber in shrouded

        38ACD936-15B7-4B4A-9FC3-57B242146C5A.jpeg

        3EC66CEF-227A-4911-AEAC-2674E93BD0BC.jpeg
         
      • pishta

        pishta I know I'm right....

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        contour that valve guide turd. Its like a huge brick in a stream. Its easy and less critical than bowl work. Also when working next to the pushrods, the iron will start to turn colors when it gets very thin so watch that closely unless you got a pair of deep dividers to gauge the thickness. If you pop through, you can drive thinwall copper tubing into pushrod holes and epoxy.
         
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