Re: 70 z rocker arm #'s
I don't have the part number at my finger tips. I think that the "O" is the only number on the rocker. If it does not have an "O" on the rocker its not what you want for originality. Put the roller tips on. Its not worth buying NOS "O" rockers in my opinion. Manley, I believe also makes a real good standard rocker arm for the 302/LT-1.
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