How can I tell if my fuel pump has been updated?

[SquareOne]

Like others said, spend the little time and money to remove the head and verify for yourself. The solid pins which secure and allow the roller to operate will look like these shown in the pic. They will be solid and able to move freely in and out of the roller. Guys, correct me if I’m wrong please, but the updated model has a DLC coating on that pin to prevent the wear the past ones experienced.

While it’s out, have a look inside the barrel to veirify there is no premature wear as well as the cam lobes all the way at the bottom of the barrel ( this is what the rollers ride on ). All very critical components that have bankrupted many....

Also, if you decide to tackle this, be sure the alignment pins that are located inside the fuel pump body, are oriented correctly. Make note when you’re removing and be sure to install in the same manner. The pin will ride in the groove located on the body of the roller assembly (again, see the pic for where the groove is machined).