My Dad recently aquired a homebuilt roadster with a Volvo driveline in it. We think it's a B18 engine from themid 60'sas itsa cast iron pushrod 4 cyl with a 4 spd. It has a cast iron intake and exhaust on the same side with 2 SU type carbs. All the pics we see of P1800's and 544's have aluminum intakes and different carbs. The rest of the engine look the same(water pump, valve cover etc) Any tips would be appreciated as we are not even sure where theserial # is on the block to try and check it that way.

Im not sure about the serial numbers either. What about a 122? I wonder if maybe its that.

Those were way before my time!!!