Stainless vs aluminum 1.6 roller rocker weight difference,

Both are 1.6 ratio for 7/16 stud mount, the stainless are Speedmaster brand and aluminum are Scorpion brand, Scorpion are lighter by 19 grams each and are made in USA. I am going to mock these up with my 6.7 pushrods and see how it looks buy I do have 6.65 pushrods on the way also. Edit, the weight of the rockers without poly locks Scorpion - 191 grams Speedmaster - 212 grams