I am not sure who made these but the Chevy MC will not work. You can see that the width between the two linkage circles are wider than the Ansen pedals. Any help is appreciated!
It looks like it was made to bolt up two 39-48 Ford 3 bolt M/cyls side by side. If you do you will need to remove the RPV from the M/cyl for the clutch side. It was pretty common to do this in the 50s.
The 60-62 Chevy Truck dual master cylinder P/N F87167 will work.... This will make you a nice setup.....