904 torque converter recommendations

It’s ether or the other. They both balance a 360.
What part is this are you missing?
The front of mine not pictured. Is exactly the same as the front of the blue one pictured. Which you state is a 360. I show a picture of the back of mine. But, the back of mine, as pictured. Has balance holes as you stated. I’m missing how that not makes mine a 360 balancer ?