Pushrod cup ends turning blue

Thanks for the replies.
Lifters are Crower, and are AMC type with provision to pushrod oil.
Rocker arms are Crane iron, they have internal groove to provide oil to rocker shaft and adjuster end. Rocker adjusters are out 2 threads, so they should be receiving oil from rocker arm.
Are the pushrod ends same radius as lifter plunger ends? When ordering the pushrods I matched the OEM pushrod diameter. But I will do more research/measuring on this question.