Good point and something else that should be noted as far as differences. The HD converter is a 258mm, you were WAY off lol. I prefer those as they have a larger more durable lockup clutch in them and the weight difference isnt that much, its a couple of pounds differences dry. Most aftermarket converer companies do just use a small bodied converter as it allows higher stall options and is lighter, but will cost a small amount of top end efficiency. The flywheel is different as the HD converter has a slightly larger bolt pattern which can be modified in a few different ways to work with either converter.
