Lennox 57K55 Evaporator Coil Assembly

I have r22. Would I be able to run 410 if I decide to upgrade my outside unit?

Please check with a local contractor. R410A and R22 have different pressure requirement so most likely you will have to replace the whole system.

410a 0r R22 ?

The original coil was good for R22 or R410A in an A/C application.