Engine Tech parts

I used their kit when I rebuilt my 225. My impression is they pretty much use name brand parts that they gather up and package into a kit. My machinist who has been doing this since 1962 said the parts were good. In the case of my /6 it included Silv-o-lite pistons, Hastings rings, King bearings and no-name gaskets. I suspect they were McCord but not sure.