[Bob Gullett]

Use one of these made by a few manufactures. It has a 1/2-20 thread that assuming your oil drain plug is that size should screw right in. The center of it is tapped at 1/8 pipe. I use it mine in a stock pan. If its in an aluminum pan I'd make sure there's enough threads on the plug to make sure it goes in far enough and doesn't strip the threads in the pan. If need a weld in bung Summit has lots of choices.
https://proshop.summitracing.com/sea...201%2F8%20bung
https://proshop.summitracing.com/parts/bmm-80250