It is a v8 for sure with a single barrel carb. The block casting indicates it is a 1957 per the searches I have done. But it is out of a 1956 chevy 3100 pickup. The block stamping does not make sense though. F 4(capital i) 8F that is all that is there. I guess I am trying to figure out if there is any value to the engine and muncie SM 420 transmission which has a code 2GM 591953 A1156