stall speed and weight
Engine Torque - the more torque, the high the stall speed
Final Gear Ratio - lower numerical gearing will have higher stall speeds
Weight of Vehicle - more weight, the higher the stall speed
Size of Converter - the smaller the converter, the higher potential stall
What car are you inquiring about and what stall speeds are you looking at? What is your concern with weight?
i can't wait for my intended lsx swap to walk all over yours...me on motor, you on spray.

