My pushrods arrived this week so since I had the time, I went to the airport and installed the new pushrods and measured the dry tappet clearance on the valves and they were all within limts with the exception of two of them. I installed one shorter (73413) and one longer (73415) on the #2 and #4 cylinders and they all measured within limits. installed rockerbox covers with new silicone gaskets.
