Outlet plate for Bendix S4LN magneto

I have a S4LN Bendix Mag off an I0-360 A1B . Wanting to put on new Kelly ignition harness but the outlet plate is original and will not accept the male threads that are supplied with new harness. Where could I get a couple of outlet plates that will work?

Thanks

Stan Soloduka

Midland Ontario Canada

ssoloduka@gmail.com

941 416 9291