While looking for wheels, I was looking to see what was being manufactured in 1964 with regard to mag wheels.
I will likely need to use an alloy rim for racing. Due to the age and rarity of the Kelsey Hays original steel rims and coupled with that the failure rate of many of these steel rims, I have come to the realisation that it will be safer to use an alloy rim. I will likely use and American Racing type rim. I will still restore the OEM steel rims and use these for transporting the car etc.
I found this information on Astro Mag wheel that were produced in 64.
http://losboulevardos.cc/2008/08/eve...-supremes.html
Great if you want to build a low rider