Anyone ever run Speedmaster Heads on their small blocks

So how does one make these Speedmaster heads work on a 5.9 Magnum with the LA oil provisioning holes? I have a '94 block and just realized it has the oil holes from the factory. I'd like to stick with my hydraulic roller setup and use the LA style shaft mount rockers. What needs to be changed if anything? Cam bearings, pushrods, lifters? Thanks.