The Cali. model has a little different carb to meet Cali's emission lawsI just checked 3 "Hemi" blower housings all say Mfd.by Loncin 60363.......... and i Know the other Nos.are Lifan I am Positive
69727 is old style non-hemi Cal., motor may or may not have Cat.Converter
I do not believe this "Hemi" head design was created exclusively for Harbor Freight. There should be other models out there with this head.