I'm sure that metallurgy is tricky to get just right, so I don't doubt it. It was my '70 E-body that bent the front segment of my passenger side 3200lbs SS spring. That car has nearly 700 hp and the about the same amount of torque, 325/50-15 Nittos and a stick shift. You could feel it spring wrapping when you got on it in both cars without the slappers to stop it.
