My name is Tom. I purchased a Buick 350 engine a few years back from a friend, but I have no idea what year it is or what car it came from. I would really like to figure it out. The only number that I see on the block is on the flywheel side of the motor and it reads 1231447. If anyone can tell me what this means or where I can find info on it please let me know. Thank you... 350regal.