Bought a 360 chrome oil pan off ebay,was supposed to be for a car 360,however the pan will not fit at back of engine.It is to small to fully set down on the block.It hits the rear seal long before it mates to the block.Shows to be about 1/4 inch to small.Is this a pan for a 318/340? I need to know before I contact the seller. Thanks! :glasses6: