Likes: 
So I picked up a set of gt40 heads that have been ported and freshened up. I looked them over before purchase and was pleased with what I saw. When got home I noticed that a couple of the roller rockers weren’t aligned well over be valves which made me look closer, I noticed that the roller tips has “eaten” into the aluminum rocker arm. My question is are they junk or can they be used? I truly believe the seller had no foreknowledge of this issue to be clear.
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