Quote: i have these 15x4 Keystone magnesium wheels 4.5 bolt pattern and 2' back space i have been trying to find info on with no luck.
Are you sure they are magnesium? They sure look like "bare" Sno-Mags, is there a K cast on the backside? I know they made chrome plated versions of the one-piece Sno-Mag.
yes 100% they are magnesium just like my 1965 and 1968 Hemi cross ram intakes in fact i sold them to a board member last year who picked them up in person.