I wouldn't run out and just buy any ol' rocker simply because it has rollers.

I was planning on running some Crane ductile 1.5's on my 383, with a roller cam that has .394" lobe lift (.591" at the valve) and uses moderate springs.

I found a couple were scored, and rather than have 'em bushed, I picked up a set of like-new Harland Sharp 1.7's that I found at a very, very good price. Not because my application NEEDED rollers, but because it was an upgrade in lift, and a good quality piece, for a good price.

But I wouldn't buy a cheap brand rocker, period.

-Bill