Which type of domes does this head take? Pro 1

[oxnard111]

I have a Pro 1 non griddled head with removable domes. It is on a 61x Cylinder. Just wondering if any one has any experience with this head and which company can supply replacement domes. I will post pictures of the existing domes I do have when I can snap some pictures.

I searched for "Pro 1" but search results were useless.

 

[oxnard111]

Here are some pics

 

[x2ryder]

kinda looks like an ada

 

[#ZERO]

ADA domes

 

[oxnard111]

Cool. So is there any way to tell which domes I have. I don't see any markings on them at all.

 

[thegoldenboy]

Compression test it and you can guess rather close. As far as measurements go, I don't know how you'd tell.

 

[x2ryder]

You couold cc the domes if yuo had the proper stuff to do it.