i dunno, i sure as hell hope not... or that would be alot of work for me to find a new one
the valves were fine after the swap until just about a month ago this one started really quiet ticking and then just got al ittle louder with time..
so i adjusted them according to the chiltons and haynes and that resulted in all of my valves going crazy
went to yotasomething.com and they said .007 and .011 for the valves.. tried it and it quieted all of them down but one.. and i think that is because i didnt tighten a nut down.. or i reamed on the truck immediatly after i did the valves
probably on thursday i'll break it down again and try to figure out the problem with this evil valve.. but dont scare me with a hurt valve.. i already have blown up one engine by throwing a piston through the side of block.. dont let me mess up engine number two..