Hey everyone, so I have done a little bit of research and found that I can find out what size my motor is and what year range it was made from the numbers behind the alternator. I have them but can not find any information on them really. They are V1042SDN 2EN210127. Any help would be greatly appreciated. I was told that it is a 350 ut the only thing that I found was that SDN could be a 1984 305 from a FBG? Please HELP!!! Can anyone help?