My new pushrods seem to have one end that is hardened. Can someone tell me if that end goes into the rocker or into the lifter cup. Thanks.

 

This is just a guess but I would think the hardened end goes on the rocker arm end since that would be where most all of the strength would be needed

 

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The rocker arm pocket has a little more movement, so as said, a guess.

I know my BBC's with Jessel's, when u order a custom set they have 2 different ball shapes, 1 for the lifter, 1 for the rocker cup, but never heard they were different material.

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