Originally Posted by cobalt327
You don't want to go deeper on the spring seats if you can help it, either.
I didn't go any deeper, just opened 'em up tp 1.350" with Comp tool #4721. The 'updated' Comp 26918 beehives are 1.310 seat diameter and were binding in areas where seat had casting ridges. Like I said, I'll definitely go a different route on my next set of vortecs. This first set was quite a learning experience. Things would have been much easier had I chosen a cam with a little less lift.