Rust removal on cam pulleys - vapour blasting

[hoodygoodwood 70 3 Cars]

I am building an mi16 engine and like a lot of long stored parts i have surface rust on my cam pulleys , i am going to have a lot of parts plated or blasted but all the pulleys seem to have a finish different to anything else and i don't think the usual zinc passivate would be right . I have had a couple of small castings vapour blasted in the past and i think this might be ideal for the cam pulleys and the one on the crank nose . What have people done on here and does anyone have any experience of this ?

[Leslie green 105]

My cam pulley was zinc plated after vapour blasting on my 1.9 gti , it turned out great but he said sometimes the coating wont take whatever was on then before.

[petert 581]

I’d clean it off and run them as is. Nobody will see them under the belt cover.