I am tring to find out the what year the engine was made. I know it is a 5.7 350. I found 14093638 on the passenger side of the motor and F211 on the driver side. I I have looked everywhere for the vin but i cant find it. I know that the engine was made anywhere from 86-94 but I would like to know the exact year. I assume that the F211 is the casting stamp but not sure. Any help would be appreciated.