Interesting part

[Coralsnake]

https://www.ebay.com/itm/134145463996?hash=item1f3bb156bc:g:wrIAAOSwlxRihKTP&amdata=enc%3AAQAHAAAAoCLbXRD7QealWT%2B9Q8RZgEuq2EMOK3u3K%2Bdahk7%2FuHNo1ZP9r0VrmE1cOet3VjHPYaNPKRjiYVNdZy0Ha178IQ0cCJVWOCmHIzHRFjEgVnM7wZUvekqtEbumHXKkP%2FjdDSagt%2FBBpP4FjxG%2FuO%2B2jzV%2FYDYwspNFzBD5MHiDFkJgNdMdAQDCOoTicEGatLKSLXRJH8MxJLGuCSZ9B9awEHs%3D%7Ctkp%3ABk9SR-Ls9LOlYQ

[Bob Gaines]

https://www.ebay.com/itm/134145463996?hash=item1f3bb156bc:g:wrIAAOSwlxRihKTP&amdata=enc%3AAQAHAAAAoCLbXRD7QealWT%2B9Q8RZgEuq2EMOK3u3K%2Bdahk7%2FuHNo1ZP9r0VrmE1cOet3VjHPYaNPKRjiYVNdZy0Ha178IQ0cCJVWOCmHIzHRFjEgVnM7wZUvekqtEbumHXKkP%2FjdDSagt%2FBBpP4FjxG%2FuO%2B2jzV%2FYDYwspNFzBD5MHiDFkJgNdMdAQDCOoTicEGatLKSLXRJH8MxJLGuCSZ9B9awEHs%3D%7Ctkp%3ABk9SR-Ls9LOlYQ

Very interesting but there is probably a good reason why it is so rare.

[gt350shelb]

 agree with bob  ........rare does not mean it worked

[Royce Peterson]

Looks like someone had a heliarc and some spare time. No part of it looks like it was done by a factory. Appears to have started life as a 8V tunnel wedge.

[shelbymann1970]

The seller is local to me so I asked a friend if he knew who it was selling all that stuff. My friend will find out for me. He seems to know where all the rare Ford stuff is in the lower part of Mi and those who own the goodies.

[Coralsnake]

Pretty sure those stamped numbers are the key.

Where is Randy when you need him?

[pbf777]

Pretty sure those stamped numbers are the key.

    Or, who or when those numbers were stamped!   

    Scott.

[68stangcjfb]

It makes me wonder if they were testing Mopar's 6-pack setup on a 428 to see if would be good for production. Or someone just had some spare time and was playing around.

[Coralsnake]

I dont think someone just made it because they were playing around.

Those numbers correspond to an experimental engineering drawing.

[shelbymann1970]

I dont think someone just made it because they were playing around.

Those numbers correspond to an experimental engineering drawing.

I'd think the blue print for the intake would be in Ford's archives. I once had a 302 hi rise experimental intake on a 302 and my next door neighbor who was a Ford engineer  took the number and brought me home the blueprint for it. He also brought me home the drawings for the Boss 429 PS bracket when I asked him for it. 

[pbf777]

Those numbers correspond to an experimental engineering drawing.

      Of?

      Scott.

[Coralsnake]

We are going to need a profession on that one