Ok, a couple of things. My converter catalog says all 360 converters from 1971 and on have either one or two weights on the engine side of the converter. In 1978, Chrysler started to use a lockup style converter with the 360 engine. They also are weighted. The 225/6 and the 318 converters do not have weights. The attached scan shows the weights associated with the 727 Non Lock up converter with the 360 engine. Hope this helps.
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