FYI FORD MustangSteve's Ford Mustang Forum / Anyone that has valve covers that has the push cap

**Posted by Greg B** 8/03/2024 10:59 AM

How many inches long is the fill tube? Base to top.

Last edited by Greg B (8/03/2024 11:40 AM)

**Posted by John Ha** 8/03/2024 12:28 PM

1-5/8" from the top of the valve cover to the top of the tube

**Posted by BobE** 8/04/2024 7:41 AM

I measurered 1-3/4' from the top of the valve cover to the top of the tube.
Does anyone know where to get an original style push on breather?
Or, what the OEM part number is?

**Posted by John Ha** 8/04/2024 9:10 AM

BobE wrote:
Does anyone know where to get an original style push on breather?

NPD

Last edited by John Ha (8/04/2024 9:51 AM)

**Posted by MS** 8/04/2024 3:45 PM

John Ha wrote:
BobE wrote:
Does anyone know where to get an original style push on breather?
NPD

Branda is where I got mine , along with 65 Cobra valve covers.

**Posted by BobE** 8/05/2024 6:48 AM

Thank you John Ha and MS. However, mine looks like the Motorcraft twist-on cap #EC-564. I've had this one, and a few others, since the late sixties, early severnties, and would like to keep that style. Also, I know that it had an 'Autolite' or 'Motorcraft' stick-on part id in the center when I got it.

**Posted by MS** 8/05/2024 9:27 AM

Isn’t the 564 cap designed to twist on to a valve cover that has the corresponding hole with two lugs, not a tube?

**Posted by John Ha** 8/05/2024 2:26 PM

BobE wrote:
Thank you John Ha and MS. However, mine looks like the Motorcraft twist-on cap #EC-564. I've had this one, and a few others, since the late sixties, early severnties, and would like to keep that style. Also, I know that it had an 'Autolite' or 'Motorcraft' stick-on part id in the center when I got it.

Now I'm really confused. Do you want a push-on or a twist-on cap?

The NPD site has both. This one appears to be close to the form factor you're looking for and is a push-on. They also sell a sticker to put on the cap to make it seem "original".

Last edited by John Ha (8/05/2024 2:27 PM)

**Posted by BobE** 8/06/2024 6:52 AM

Sorry for the confusion. The part number I posted is the twist-on style (EC-564). What I’m looking for is the same top as the twist-on has, but on a push-on style, see attached pictures of what I have.
The “Cobra” valve covers I currently have were purchased from Ford in the mid-eighties. I’ve had other Cobra valve covers purchased in the late sixties, early seventies that, if memory serve me correctly, had the same push-on style breather. These breathers, and valve covers, were all purchased from Ford.

**Posted by Nos681** 8/06/2024 11:01 AM

**Posted by BobE** 8/07/2024 7:24 AM

Nos681 - thank you. Not exactly what I have, but it will work.

**Posted by Nos681** 8/07/2024 3:41 PM

Bob, there may be additional versions by Stant/Motorad.

NPD has these options.

https://www.npdlink.com/1965-1973-mustang/engine/valve-covers/oil-caps-breather-caps-grommets-elbows/caps

Last edited by Nos681 (8/07/2024 3:59 PM)

**Posted by BobE** 8/08/2024 8:10 AM

Dan - thank you.

**Posted by Nos681** 8/10/2024 1:31 PM

EC-61

EC-561

B6AZ-6766-A

B6AZ-6766-B

**Posted by BobE** 8/11/2024 11:28 AM

Dan - the EC-561 looks like the one I have, thank you very much.
At least now I can do a search to see if it is avaialble.

Thank you again.