ellowviper
07-17-2015, 07:02 AM
Was home on R&R from Afghanistan and unwrapped the two sets of GEN-IV heads that I had scrounged. Really neat to paw over. Once set is complete and one set is bare. The complete set has beehive springs and appear to be stock CNC machined castings. The intake valves have "2.1" printed on them in white indelible marker. I took one valve out and measured its diameter and it is 2.1 inches Are these the stock diameters for GEN-IV intake valves? I should probably post in the GEN-III/IV section, but they are being used on my GEN-II KB 4.7 blower project.