Hopefully you have this plaque on the DS door jamb?
https://www.flickr.com/photos/advance-design_parts_co/17057160050/in/album-72157651722976780/
The number will help us decipher model, where it was built, confirm the year and it's plant production number. You will also find a part number on the top of the cylinder head, numbers low down on the right side of the block (you can see them in the pic below) they will help.
The engine number is located as shown here on a pad adjacent to the distributor, include all these and many answers will be forthcoming.
https://www.flickr.com/photos/advance-design_parts_co/8601993635/in/album-72157633120087261/