If you look on line, you get some variations in weights but a 235 weighed 620 or 630, about the same as a 348/409, the small blocks were about 40 lbs lighter.
The ironglide weighed about 100 lbs more than a manual tranny and I think the aluminum glide weighs about the same as a manual tranny. That's dressed weight with bell housing, clutch, torque converter flex plate, etc. The stock torque converter in my 59 IG weighed at least 50 lbs.