According to Motor (mine does not list 59s)
PS control valve 5689397 was common to 60-64 Chevy, 63-7 Corvette, 62-6 ChevyII, Olds F85, Pontiac with A-C
Power Cylinders 5685399 were common 60-63 to Chevy and Corvette
Ask me a hard one
PS Motor's only covers 7 years - my book is 60-67, but the 60 Chevy is only a face (and butt) lift of the 59 so....................