Replace rocker shafts for sure

MOPAROFFICIAL said
Yep.
I'm reading contrary in some other responses...
One day it's fine to grind the rockers the next it's bad. Lol okay.
Must have learned something since then.lmao

The bearing doesn't make the rocker weaker in such a way that it will break.
I've used them too. Thick wall induction hardened shafts are necessary.
Can anyone show a pic of their rocker body broken due to weakness from the roller bearing, probably not.
Another thing, if you cut the stem height down for geometry, say you're stuffing a taller spring package in.. you can create an interference between the retainer and the rocker body on each side of the roller... it can also hit the spring recess if too large a o.d spring is used. Its takes some work combatting other issues to get there..but you can. It's sometimes give and take.
Those grooves are really wide apart.. not typical.
Definitely rethink that whole valve train.
Get a geometry kit if you wanna use a big spring so you can raise and more the rocker back some.

1. I have always said not to grind on a rocker. Never do it. It makes the rocker weaker, unless you run stock stuff. And if that’s the case, why are you grinding on the rocker?

2. Broke several T&D rockers on the dyno with a hydraulic roller cammed 545 HP engine pulling to 5500. I couldn’t get the criminally retarded customer to switch to offset stands, but the keyboard hero’s of moparchat knew better. There is video of it somewhere on the web, but finding it is near impossible.

3. I’ve run springs as big a 1.655 and NEVER ground a rocker. I’m running 1.500 springs now, and didn’t grind anything. Guys were switching to beehive springs because they didn’t want fix their junk geometry, and many here encourage that crap, rather than fixing it correctly. It’s the crime of Chrysler engine building.

4. Who cuts down stem height? Guys normally switch to longer valves, and that changes the geometry. And then they stick a roller tipped rocker on there, and change it some more. And then, they add lift, which changes the geometry even more, but piss on it, everyone has a grinder and you can just make the clearance rather than fix it.