66 Newyorker master cylinder fitting

[RobT]

Good day folks. Wondering if anyone knows the size of the brass fitting in the front of a single master cylinder for my 66 New Yorker? I'm guessing it's metric and my local shop doesn't carry them to check it. So need the male size that bolts into front of master and the female size that the line goes into.

Thanks for you time.
Rob

 

[Ross Wooldridge]

It's most definitely NOT metric... the line from the master cylinder to the distribution block is 1/4" for the single res master, so the inlet fitting to the nipple on the master is I believe 7/16th, and the nipple in the master is 1/2".

I'm going off my memory here, so I could be off, but that feels right... the C Body community will correct me if I'm incorrect!

 

[Ross Wooldridge]

Rock Auto says the master cylinder outlet fitting at the line is 7/16 @24 thread.

 

[RobT]

Thanks lads