I was able to color match some paint at Sherwin Williams Automotive Paint for my ‘64 Tempest. I am pretty sure that SW automotive is nationwide, so anyone should be able to duplicate this color for their 59-65 Pontiac. I have been running the car this year after installing my motor last November. So far excellent durability and no burn off ( I am using KRE heads). I am including a photo of the spray can from SW and a photo of my engine for reference. Good luck!
