Longer push rods ?

[danny waters sr]

Originally Posted by Alan Roehrich

Danny, can you define "knocking the rocker off" please?

Felt the car start missing around 6-6500 .
Got back to trailer and removed valve cover and rocker had come off.(polly -lock still on stud) not broken either. checked push rod and it was ok .i took the polly lock loose with my fingers and hex lock had not moved so i screwed it back on til it jammed (or locked) then i checked valve ajustment and was on the money. No problem til i installed new lifters.i will check the inside height later this week.i thing the longer push rods with new lifters could be the cause.