... :Engine pistons,valves,valve seats,valve guides,ignition systems,high voltage cables,spark plugs and etc ... ignition system:Distributor + hi-voltage cablesThis is the most cost-efficient way to convert diesel engines into gasElectronic ignition system (EIS)Ignition ECU + hi-energy ignition ... gas engines)Engine pistons, valves, valve seats, ignition systems, high voltage cables, spark plugs and etc ...