Valve Body Identification

[bler57]

Does anyone have a reference for identifying valve bodies? If I am correct, all of the BR valve bodies have the marking on the side of BR-1,2,3 and a purple brush mark on one side. Is this correct? And what do the Monte SS valve bodies have for identifying marks/numbers? Thanks for the help.

 

[SSedan64]

Monte SS has CZ & purple dye Not sure what all numbers. Olds 442/HO has KZ & purple dye. Mine has KZ7.