Originally Posted by DaveC
It's whatever scrap aluminum they could buy on the open Chinese market, most likely bumpers from '77 Vega's and old beer can pull tabs. Your problem with them is the bores are hard chromed, I don't know about any other plating you could do without messing that up, at least with the jugs.
i plan on getting the bore and piston Nickasil coated at work. So Im not too worried about the chrome lining. Well I think I might send a mag or clutch cover threw and see what happens.