I'm a big fan of direct oiling of the rollers......I just used what Ryan J recommended on my W-9.
Similar end use , but mine is n/a.
They are a Crane piece that was made by another outfit......G.S. if memory serves me.
I could go in the garage and get the P/N if you're interested.
Or simply call Ryan at Shady Dell and get the lowdown.
He is a small block guru in my opinion.