Stamped rockers?

[Terry Cain]

Originally Posted by art leong

Have any of you that have used stamped rocker arms. Had them wipeout on the valve tip side?
What are the causes (other than lack of oil) ?
I'm using a cam that is much bigger than a stock cam. And I destroyed 12 out of 16 rockers

Yes, I have. Come to find out it was the rockers. They were suppose to be the "all high mighty nitro" rocker which (no names) one of the cam manufactures sells. Chinese steel junk.
I found a set of OEM and did hardness testing against the Chinese rockers. WORLD of difference. I suggest checking hardness. Should be at least 40-45 on rockwell C scale.