One W2 Bushed Iron Exhaust Rocker Arm
NOS 273 rocker on the left, NOS bushed W2 exhaust on the right, still in the DC packaging:
Left to right, we have the NOS 273 arm, a 340 Six Pack exhaust, and an unbushed W2 exhaust. The production T/A exhaust rocker is thicker and has a stouter rib than the 273 arm, while the W2 dwarfs the other two in both departments:
There's nothing a'tall wrong with 273 rockers, and the geometry of all three is identical, but 273 parts are nowhere near "the same" as W2 or even factory T/A.
And before anyone asks: The rocker arms shown are not for sale.
They most certainly did not.
NOS 273 rocker on the left, NOS bushed W2 exhaust on the right, still in the DC packaging:
Left to right, we have the NOS 273 arm, a 340 Six Pack exhaust, and an unbushed W2 exhaust. The production T/A exhaust rocker is thicker and has a stouter rib than the 273 arm, while the W2 dwarfs the other two in both departments:
There's nothing a'tall wrong with 273 rockers, and the geometry of all three is identical, but 273 parts are nowhere near "the same" as W2 or even factory T/A.
And before anyone asks: The rocker arms shown are not for sale.