Adjustable rockers adjusters problem?..

Cuda Al said
Wow, lets keep in mind unless we are talking about engines that are being raced this is all moot point.

With my 273 the new springs were larger diameter than the original ones, they rubbed the stock rockers. Nothing with the geometry CHANGED from the factory specs, is it perfect? who knows, who cares, it is factory and it is a street engine.

Grinding the surface of the rocker to give the stud lock nut needed to be good not absolutely flawless.

Grinding the armpit of the rocker (mostly just the casting line) for clearance isn't going to hurt the rocker or create a week point on a street engine.

The problem with the springs was that the diameter was different not the height and has zero impact on changing geometry. If this isn't clear people need to go back to school and take geometry again. It is the same geometry that is applied to valves.

Alan

It’s a BIG DEAL unless you like junk. Correct is correct. How big of spring are you running? I don’t ever grind on a rocker. So...if you increased the lift (and nothing else) from the factory .430 lift or whatever they were, you have changed the geometry.

Chrysler put the shafts where they are for very low lift and there isn’t much room to increase the stem height and not have issues.

Again, if you are running anything less than a 1.550 spring you don’t need to grind the rockers. If you are running a spring bigger than that, you need to at least move the shaft away from the valve. You don’t grind the rocker.