Roller cam block - use flat tappet cam

I have a pre-magnum roller cam 360 block which I am using for a stroker build. I already have a new XE274H hydraulic flat tappet cam and don't want to invest the extra money in a roller cam as my coin would be better spent on a porting job on the Eddy heads. Quick question - can I use the flat tappet cam in the roller block without any issues or problems?

Cheers