MP Performance Rocker Shafts

[71Demon340]

I just received a set of the MP hardened rocker shafts. I was under the impression that these had the "bananna" grooves for the rocker oiling, but they do not. Seems like a read that they needed the grooves if using the factory adjustable rockers. Can anyone confirm this?

 

[rumblefish360]

The bannana groved ones are under a different part number, if there still made. You can get bannana groved shafts from Huges engines. There not needed unless your planning on reving the engine (as per MoPar) over 6000 rpm. Mopar also recomends bushed rocker arms for this.
The factory rocker arms do not "Need" the groves.