340 Rockers

I got my new Comp rockers 1622-16 yesterday. My pushrod adjuster will hopefully be in today. I tried to make my own but my old 340 pushrods are solid. It looks like I may need a longer pushrod than the stock 7.500. I have been looking at Comp cams pushrods to see available sizes when I get the correct length. My question is can I use a oiling pushrod in place of my non oilers? Most of them are listed as oilers. Thanks.