Hood and Deck Lid torsion springs

Curious on this? I took my 65 Dart apart for a rebuild, now I have a 65 Valiant which I am dismantling. On the Dart, I did not look at the torsion springs on the hood or deck lid which was right or left; whereas, on the Valiant I did. Curious....are these torsion springs side specific...is there a right or a left. Basically, are these springs pre-loaded. Thanks for the advice on this question. Old Dart 66