Small block pushrods with hydraulic cam.

Thanks all for the help. Thinking about the oiling situation I have another question. My solid lifter stock pushrods are closed at both ends so no oil can go through them, the rockers oiling from the rocker shaft. The pushrods I need the correct length for hydraulic lifters are hollow which I assume will allow oil to travel through them to the rocker tip. Will this happen and will if have unintended consequences which will be bad for my build?
DRO:)