Roller Rockers in Stock

[Alan Roehrich]

Originally Posted by Dwight Southerland

Alan, I agree with all your analysis about the deterioration of the spirit of Stock Eliminator, but using the "quick lift" Crane rockers as a point of "evils" associated with roller rockers is not totally a valid argument. The principles of physics that are designed into the Crane rockers can also be incorporated into stamped rocker arms, and the additional low lift increase can be built into the cam lobe profile.

The addition of roller rocker arms into the current mix of contradictory rules in Stock Eliminator is probably of little consequence other than helping a few applications be more reliable.

Dwight, you're absolutely correct, it is possible to make a stamped rocker arm like the Crane, but it would require someone making a very expensive set of dies to stamp it with, and owning a press. You can make an aluminum rocker like the Crane with any good 4 axis CNC machine, maybe even with a 3 axis.

Yes, you can put that low lift aggressiveness in a cam profile, provided you are not already on the edge of the rocker face.

I disagree, there's a lot you can do when you take the stock rocker arm out of the equation.