904 torque converter recommendations

I think my engine has the wrong balancer on it. I just now started putting pieces together in my mind. Please don’t comment unless you know without a reasonable doubt that it is in fact a 318 balancer ? I painted this over the summer and never dawned on me to double check that someone previously put the correct one on my 360 or not , This one doesn’t have a machined half moon groove on the exterior like the one pictured above, at least I can’t feel that it does now that it’s installed. It’s definitely an original cast steel small block dampener. My engine is definitely a 360. Confirmed numbers on drivers side of block. Clearly says 360. Plus it has the 360 only oil pan and 360 only rear oil pan seal. And 360 numbers matching cast heads. To rule those things out. No mistake it’s a 360.

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