Block serial number decode

[Chevyjimmy]

I am new on here. Hello everyone. I will start out by asking if anyone can tell me if my block is actually a truck block. I know it is from Oshawa Ontario and is a 1969 block. But is it a car block or truck. Serial number taken from the pad on the block in front of the pass side head is 191037134. I know the 1 is for Chevrolet and the 9 states 1969 the next 1 states Oshawa but the issue is the next digit which is the 0. I have read that a car block serial number would not have a 0 at this location. Could this be a truck block? Anyone please?