68 Chevelle PDB "CD" Master Cylinder
 

I believe this MC is NOS. It was installed on my 67 Z when the original owner began his restoration. He used this P/N 5468811 due to Chevy recommending for road racing applications. He installed this MC around late 70's early 80's and filled the system with Dow silicone brake fluid. This MC can be used as-is for rebuild as there is no pitting on the bore at all. $300 plus actual shipping. Paypal FF.

Thanks

Paul