I am looking to find out info on two different engines. Both are GM engines. I was told they are both 350's but have my doubts. If anyone can give me some info I would appreciate it. The numbers were found on the front, left(if you are looking head on to an installed engine)side on what I believe is called a pad. They are: Engine One V0311THB on the second line TC4515832. Engine Two 2M0920 the second line 6VP.