Opened up a new out of the box Predator #69730 today. Guess what we found, every single part was exactly the same as every 69730 before except the head assembly. This thing has a new head design with enormous ports, 27mm intake valve, 25mm exhaust valve and believe it or not automotive type spring retainers!! Also the valve stem is only 5mm (.196") instead of the normal 5.5mm. There are now 4 different versions of the 69730 engine that we have seen.