A new article with photos on the T/A & AAR rocker arms with a W2 / W5 rocker arm comparison

I have versions of W2 bushed rockers that look the same as both pictures above and both have the .775 offset. When they press in the bushing it blocks all the oiling holes. They then pass the drill into the pushrod hole to drill through the presses in bushing. Next they drill a new hole under the nose to send pressurized oil to the valve tip. This replaces the top hole that is designed to dribble oil down the top of the nose. I believed they did this to only have one rocker arm for both the bushes and non bushes rockers to save $$.

Now I am not saying that the picture in the post above is or is not a TA arm. I am saying you cannot say that a W2 bushed race rocker can only be identified by not being drilled on the top for pushrod tip oiling.