I have what I believe is a 1965 Cobia sea queen. It has a Volvo Penta motor. I was told it is a 100hp motor. I have research and can not find a model number of the motor. It may be a AQ100 or BB100. Its a single carb inboard. Anybody have a clue of what it is?? The sterndrive says model LPZ. It needs head gasket and water cooler housing for the oil filter replaced. Where can I get these parts??