Virtual Page Size

Hello everyone. Please forgive my ignorance as I am a noob when it comes to lower levels of linux.

I am trying to run a large application on IBM PPC64 machines and I believe that the default virtual memory page size is 64K for RHEL 7.x.
Due to legacy purposes, I need a page size of 4K.

Since I need a page size of 4K, how can I accomplish this?

Does RedHat provide a prebuilt package with 4K page size that I can just download and use? Or do I need to recompile the RHEL OS with the correct parameters? If so, can someone point me to a place that has information where I can get this done?

If I am able to get RHEL working with a 4K page size, is there a chance that applications and such will not work or have all sorts of unforseen problems running on RHEL? Are there any cons that might befall me?

Thanks