Sharktooth grille info you may not know 71 340 on its own

I'm afraid someone has sold you a bill of goods, maybe to increase the price of their item.

The grilles differ based on supplier, build location, time of year and model year. Cars rolling down the line have parts pulled from bins and those bins are filled with the same grilles for a twister or 340 car. Replacement part numbers for a 71 are the same for 340 and twister cars.

There are original 71 cars running around with black and gray base cast material sharktooths.

If someone is paying extra money for the base material color of an original grille, they may want to buy swamp land in florida or the brooklyn bridge.

I think this is the same type of deal as what's the "correct" shade for b5 in 1970 or 1971. Seen original paint cars from each year, two different factories, that were not the same shade. Both were original paint. Which one is 'right"?