[Chevy Kid]

Hard to read but could be:

V1206B5 for the engine

Casting 3914678

Thanks..I was having problems looking it up.. but I am wondering if it was not read to me correctly. Thanks..

 

[Mike]

3914678 = 302/327/350 68-79 210-350 car & Truck 2-bolt

You need to recheck the code as that's not a good one.
Casting date might narrow it down too