Reworking the 273 Adjustable Rockers

The reason they don't oil is because the oil hole in the rocker arm (on the pushrod side) does not line up with the oil hole in the shaft.

You MUST have the holes lined up so full pressure oil gets to the cup/ball when the valve is on the seat.

GenII hemi's had the oil hole timing off. ALL W-2/5 shafts and rockers are out of time. MoPar KNOWS this and they do NOT care.

If you are using heavy spring pressures, big RPM, then you need to assemble the rockers on the shaft (without the adjusters installed) and put all the valves in the head, preferably with soft springs if you have them. I should mention you need to blue the shafts first.

then take a small, sharp scribe and go through the oil hole in the back of the rocker and scribe a mark on the shaft. Do this for all the rockers.

Take the rockers off the shaft. Look at how far off the oil holes are. If doing a W-2/5 head, you will be STUNNED. they are off front to rear, and radially.
Take a ball of lead shot from a shotgun shell and pound it into the original holes. file it flat and smooth. Next, drill new holes where you scribed on the shaft. Make the hole a bit bigger than the OEM stuff.

Now when you put you shafts and rockers back on, they will get full oil pressure when the valve is on the seat. It will fill the cup up and you will not blue the rocker balls and cups any more.