B3 Kit - Shaft Modification / Possible SM rocker issue.

TurboGLH said

I probably could have been more clear, my big concern was poor oiling to the bottom of the rockers due to no groove in the shaft. The rockers that came off the car were a set of 273 adjustables on a set of later shafts (not my doing, installed when I bought it), and both the rockers and shafts had heavy scoring at 6 o'clock.

Based on the reply below, seems like experience with these rockers says it won't be an issues, but before I modified the shafts I wanted to get some feedback.

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You're golden then. No need for grooves or anything else. As long as the adjuster is down the correct amount it will oil the pushrods very well and the bushings will be fine without a groove.

The big thing with the rockers like that is keeping oil flow and pressure UP at idle to keep the bushings off the shaft.

If you think about it, the rocker has enough vertical oil clearance that when the valve is on the seat that oil will get out to the bushings IF the flow is there and the pressure is high enough.

That's one reason I always use a HV pump with stuff like that. The volume of oil is higher at lower engine speeds to keep rockers off the shafts.