Cup Style Pushrod Adjuster Screws

Not sure what work to them would need to be done. I just screw the ball adjusters out and screw the cup style in (3/8-24 threads) From what I’m reading it’s just a matter of how many threads show initially on the cup version (approx 1 to 1-1/2) vs the ball version (2 to 3) according to Manton. Turns out I might need slightly longer versions as mine are actually about 1.380” PRW adjusters are slightly shorter. I’m seeing 1.250”, 1.300”, and 1.500” offered by Smith. I’ll be talking to B3 as well to make sure I get the correct length for setting things up for the measurements he’ll need for his correction kit

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If your rocker has Chrysler oiling you can’t oil the cup style adjuster with it. You have to make it so the feed to the cup is through the adjuster.

So unless your rocker has oil feeding directly to the screw you have to get it there. The squirt system Chrysler used won’t do it.