Quote Originally Posted by Ed Weldon View Post
I wonder if these GM rocker arms are heat treated steel with a high carbon content. If not you should be able to weld to them to make oddball shaped hold downs like when you have to machine a cast part or assemply that has no usable machining registry spots. Like parts of automobiles or machine tools.
I am not sure of the carbon content, but the ones we use are nitrided, never tried to weld one. I don't know enough about the nitride process to say what would happen if one tried to weld it. I do know that they are significantly tougher than the standard aftermarket racing bits. We went from several sets a season to swapping them once mid way through.