OEM Rocker Arm Side Play

Ironracer said
Any I can take w/o pulling the shafts? Rocker cover is loose now... I don't mind going outside, but, I'm not wanting to get sicker ( just got outta shower, water in my ear). I'd imagine You would want the I.D., and the width ( at widest point?) Then maybe total length? But you .at want centerline of shafts to who knows?

Take pictures if you can of one, zoomed and clear.
Here’s an oem rocker and one of the good Mellings (ootb ready) My digital caliper battery is now dead but I’ll get some measurements ASAP. Do you have a caliper to measure things?
The Mellings are slightly thicker as I’ve mentioned earlier. It be interesting to see how they (and any others like Elgin etc) stack up to the MP’s