273 to 360 swap. same converter?

Stock flex plates are the same on all LA motors. The weights were added to the torque converter & the harmonic balancer. Mopar performance used to sell a weight kit that came with a template to mark where to weld the weights on the converter. I don't know if its still available or not. Later 904 would be the way to go because of the converter to crank snout fittment.