I've admittedly not read my entire Grundy policy but Grundy has stated on their My Classic Car TV ads that their policy allows the insured to repair any damage using the best parts available including NOS if they are available. I hope I never have to find out one way or the other.

Save a life, adopt a senior shelter pet.
The three main causes of blindness: Cataracts, Politics, Religion.
Name your dog Naked so you can walk Naked in the park.