we are looking for a manufacture of pistons hi silicon, forged in the trade. also you make the flanged chrome linners for the isuzu we are looking to get made some other sizes in this format. 72 mm bore and 75 mm bore sizes 100 mm long. the pistons are motor bike pistons 72,75 mm diameter 17 mm pin flat tops 25 mm compression height. would you be able to manufature a four cylinder air cooled motor bike barrel. could you supply cost on run numbers please Hugh from Robinson Toolmakers PTY LTD.