Oil drain plug gasket size/type

[smross]

I'm about to do my first oil change on my '37 coupe with a 59AB engine. What size oil drain plug gasket do I need and what material is used eg: copper, fiber?
I won't DARE ask what oil viscosity you guys use!
Thanks.

 

[JM 35 Sedan]

You need to determine which oil pan you actually have on your conversion since '35-'48 pans will work on a 59a engine and there are different size oil drain plugs used during these years. MAC's would probably sell the gaskets you need. I prefer the copper versions.

 

[BILL WZOREK]

Most NAPA stores have a assortment you pick size & the # you need.