Master Cylinder ID

[Dartn440]

Any help on ID for this. Stamped in yellow on Side reman. 2223621 on bottom. 158 on flange near red cap. Thanks FBBO.

 

[Bird 426]

This is off my Dart, front disc brakes. Bore is approximately 1.080.

 

[XS22J8R]

That is a 67-70 OEM disc brakes master cylinder used on a variety of B and C bodies. The cap is aftermarket though.
67 all B body with disc. 68-69 hemi B body disc. 70, and iirc 69 too C body disc.
Casting number is 2225621.