Not roller cam. You're thinking about roller cam bearings.
To retrofit for roller lifters you need to bush the lifter bores. The sleeves will still end up being .904. You will need to find a shop with a special cam tunnel fixture for LA. They need to use this fixture to bush the bores, it needs to be LA specific.
The closest shop I found was 100 + miles away. I was debating sending the block to Hughes before I found them.