there are actually 2 fire extinguishers , the fuel tank is copper , using the aluminum fill and outlet from the original boat motor tank & the pump from an old gasoline blowtorch to mimic the oil pump on an old time board track racer . I am using the old blowtorch brass tank along with a sealed beam for the headlight . The other extinguisher is a small brass one mounted up by the radiator to add more coolant capacity to the syatem