What ya mean partial truths? The Ball-Stud Hemi was a Chrysler design, BUT the "Hemi" generalized, isn't........ IT was merely made famous by Chrysler, not totally designed by their team of engine designers!
No offense, kind of out of the O.P's original intentions. I already know,about European influence, and the WW 2 engineering /aeronautical Chizzler development. Chrysler proposed this as an option, they determined it would fail E.P.A./C.A.R.B emissions standards.(I.E.,they pulled the plug..).If it was not offered,I consider it a partial truth... My statement, sticking to it.