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Hole in Firewall not identified

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  1. doubleyellow

    doubleyellow Well-Known Member

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    Extra hole between the Ballast Resistor and Regulator. Did a quick check of other E-Bodies online and don't see it. Not sure why I'm just noticing this now.....

    1970 Challenger Convertible. Built April 27 1970.

    Hoping it's factory, but who knows with Mopar......

    Thanks
     
  2. Grady Cain

    Grady Cain Well-Known Member

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    Does it look like a factory stamped or punched hole or more like someone drilled it by hand? Post a photo if you can so we can see. You know we like pictures here...
     
  3. doubleyellow

    doubleyellow Well-Known Member

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    Had the picture.....forgot to post IMG_0501.JPG
     
  4. Rich G.

    Rich G. Active Member

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    This is a picture of my firewall on my 70 convertible. No hole on mine

    BA56DDEC-83CB-47A5-A960-A9BD6D54FE98.jpeg
     
  5. moparleo

    moparleo Well-Known Member

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    Here are a few pics

    e-body_firewall.jpg

    Challenger firewall.jpg

    mopp_0107_02_z+1971_dodge_challenger_r_t+engine.jpg
     
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  6. doubleyellow

    doubleyellow Well-Known Member

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    Thanks guys.....looks like I have to take care of that.......
     
  7. aussiemark

    aussiemark Well-Known Member

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    I think I can see it in the EV2 340 engine bay in the last picture looks like it is for a wiring support. I will check my cars and get back to you.
     
  8. aussiemark

    aussiemark Well-Known Member

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    Just checked both of mine 70 Cuda and Challenger and no hole.
     
  9. RJHJR

    RJHJR Active Member

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    It is for the black loop wire strap. Wiper fluid hose and heater control go through it among other things. My non AC cars have it plugged but I don't think its original. My AC cars do have the black loop. These pictures are of two 70's and a 71 form before they were touched. 9Dec2010 043.jpg DSC04175.JPG MVC-186F.JPG MVC-188F.JPG 9Dec2010 043.jpg DSC04175.JPG
     
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  10. budascuda

    budascuda Well-Known Member

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  11. aussiemark

    aussiemark Well-Known Member

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    This hole is getting interesting my 70 Challenger has air conditioning is a Hamtramck late build (5/70) car and my 70 Cuda also Hamtramck early build (9/69) 440-6 so no air conditioner and no hole in either car, no dimple, no plug nothing is it an LA plant thing? Doubleyellow that hole is in that orange car, that green car and your car, I think it is original I wouldn't fill it in.
     
  12. doubleyellow

    doubleyellow Well-Known Member

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    Interesting.....I see it in the green car and I vaguely remember that black wire loop.......my car is non-A/C, but maybe they were trying to use up A/C cowls that week !!
     
  13. aussiemark

    aussiemark Well-Known Member

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    My factory air car doesn't have it, was your car made in LA or Hamtramck?
     
  14. doubleyellow

    doubleyellow Well-Known Member

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  15. aussiemark

    aussiemark Well-Known Member

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    I went on the AMD website and their cowls have the hole.
     
  16. moparlee

    moparlee Well-Known Member

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    Checked my two 71 Challengers, one a small block and one a big block, both have that same upper hole for the black wire loom strap. Both non AC and not verts, made in Hamtramck.

    And the interesting thing is they do not have the lower hole where you have your black strap.
     
  17. rbbruno3

    rbbruno3 Well-Known Member

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    96C3928A-A84D-45BD-B94B-28D408EDE28F.png AMD cowl upper and lower 2015 . Hole not present then
     
  18. doubleyellow

    doubleyellow Well-Known Member

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    Thanks for all the input...........no 2 mopars alike........
     
  19. 71droptop

    71droptop Well-Known Member

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    Hi guys- Great pics.
    Anyone know where Tach wire grommet goes thru firewall?
    Thanks....
     
  20. Rich G.

    Rich G. Active Member

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    I thought it went in one of the bulkhead terminal blocks.