On the side of the engine where the 6 spark plugs are down under neath them the engine block it self their is two plates that have 4 screws that hold them on their is two plates so their would be 8 screws anyway the point is those plates can help you under stand what it is and what it is not if it is 4 inches it is a 250, 230, 194, if it is 6 inches 292, so if it is not any one of these then you probably have a 216 so their you go hope i was a little help to you and go buy that 49 Fleetline Sedan and have fun.
