Distributor clearance issue

Engine, Trans & Driveline

  1. Green72

    Green72 Well-Known Member

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    1816B72A-7898-4FC5-A341-A3601DF8CA1F.jpeg 5E2FE30D-9CE8-4A02-9234-DF5750DE320C.jpeg 440 source fabricated valve covers and MSD distributor. I have ground the valve cover flange as far as I think I can. I can now install the distributor but it has very little room. I can install the cap and rotate the distributor but the spark plug wire ends contact the valve cover. Should I be concerned about wires in contact with the valve covers?
    Any suggestions to remedy my situation would be great!
     
  2. gdrill

    gdrill Just enjoying "B"-ing here FBBO Gold Member

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    Different combination of parts. :(
     
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    • 493 Mike

      493 Mike FBBO Gold Member FBBO Gold Member

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      I don't think you will get any spark jump with all new components in the secondary ignition system.
      Mike
       
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      • Dan64

        Dan64 Well-Known Member

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        What heads are you running?.
         
      • boltupal

        boltupal Well-Known Member

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        When that aluminum valve cover gets hot. Its going to break that Dist. cap.
         
      • 91r/t

        91r/t Well-Known Member

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        See this quite a bit with aftermarket valve covers and the MSD distributor. Seems they are a bit more bulky than a stock distributor.
         
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        • AR67GTX

          AR67GTX Well-Known Member

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          You might get spark jump through the boots. A friend with a 69 Hemi ran a MSD for awhile and the cap/boots rested against the hood air intake pan which has a metal strip reinforcement for the screws. He was blowing through a distributor wire boot about once a week and shorting to the metal strip. We would find a small, pin head size hole burned through the boot each time. He finally changed to an FBO distributor that was shorter.
           
        • Green72

          Green72 Well-Known Member

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          Trickflow 240s
           
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          • 440 Charger

            440 Charger FBBO Gold Member FBBO Gold Member

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            Aftermarket always has issues. Remember I would bet lots of Engineers were involved in the motor and the distributor.
             
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            • andyf

              andyf Well-Known Member

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              First rule of hot rodding: Not everything fits with everything.
               
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              • Green72

                Green72 Well-Known Member

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                I am leaning towards modifying the valve cover. Just have to figure out how much room I have on the rocker
                 
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                • andyf

                  andyf Well-Known Member

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                  Looks like the valve covers are powder coated though? You can cut them up and modify the corner but it might not look great when you're done. Bottom line is that whoever built those valve covers did a poor job. They should've known that MSD distributors don't fit. The valve cover might have been designed to work with the 440 Source distributor.
                  When I designed my own valve covers I made sure they worked with my distributor.
                  DSC_3420 (Large).JPG
                   
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                  • Green72

                    Green72 Well-Known Member

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                    I powder coated them, so I can fix that. I should have mocked it up!! Seems like 440 source could mention it.
                     
                  • Dan64

                    Dan64 Well-Known Member

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                    I thought maybe, i have T.F. 270's and they seem to put the valve cover closer to the dist. When my engine was dynoed we used the builder's valve covers and he noted that this was the most he had to clearance them . I'll take the trade off,lol.
                     
                  • Green72

                    Green72 Well-Known Member

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                    Thanks for all the input everyone.
                    Andy F your book has been invaluable.
                    I will make it work one way or the other
                     
                  • 70rcode

                    70rcode Well-Known Member

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                    Depending on the rocker arm clearance, maybe fab up an Internal corner weld bead & grind off the extenal interfering bead material + "massage" hammer to clearance fit...
                     
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                    • Green72

                      Green72 Well-Known Member

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                      That’s kinda what I’m thinking
                       
                    • dvw

                      dvw Well-Known Member

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                      Same distributor with my Indy 440-25 manifold. I ground the intake and the lip off the cap. Wires touch the valve cover. 7 years 700 +passes at 15-1 compression. Never a misfire issue.
                      Doug

                      1027121338.jpg
                       
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                      • Green72

                        Green72 Well-Known Member

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                        I made it work. Took a little here and a little there and then some shaping with a hammer. I'm comfortable with it now
                        Thanks again everyone
                         
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                        • Fran Blacker

                          Fran Blacker FBBO Gold Member FBBO Gold Member

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                          Pictures???
                           
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