Identifying main journal bearings

[Jon-S14]

I'm having a problem finding out the numbers for my main journal bearings. I can't seem the find the numbers stamped on the block anywhere. Does anyone know where exactly it is stamped on the block? The other set of numbers that I have are stamped on the crank. The top numbers say 12123 and the bottom numbers say 1111. What do the bottom numbers represent? After I find all the numbers, how do I calculate what color bearings I need? I just want to buy the original bearings that were on before cuz the motor has low mileage and I'm just refreshing the motor. Will the s14 sr20 fsm have the same method as mine? That's all I have right now.

Btw, I have a s13 blacktop sr20det motor.

Thanks