Transmission around 110 lbs + converter around 30 lbs. Length 30 1/4 to 30 1/2 face of bellhousing to end of tail housing.
AODs are the over-drives, C4 & C6s are both 3 speed with final drive 1:1. You can add an overdrive, but it's not cheap!!! GearVenders I have one on a C6 in a 65 Comet Cyclone.