Small block aluminum heads...

I was just surfing the Summit site..type in mopar performance rocker arms..And a whole bunch come up. Different ratios, bushed and un bushed, different offsets (which according to the MP website the big port commandos need...) Just keep looking..it's all there. take those part numbers (the MP ones) and try other websites, I'm sure you can find them for a similar cost, or a little less.