I knew the heads were china castings. You're probably right about the rockers too. I guess we'll see how they hold up.China rockers, stainless, many brand them just like the China sourced dart clone heads bpe brands, there the only one with those castings in the pedestal option but many sell the stud version yongyu industrial cast the heads, think Y&j make the rockers but never dug into those much. https://ynj-racing-rockerarm.com/collections/stainless-steel-rocker-arm