My '71 ain't a '71...or is it?

I decoded the VIN, and the VIN is indeed for a 71 that had a 318. I’m thinking barbee was right and that the car just has some 73 parts.
Nope, slant 6 car. Engine code "C". (5th. digit)

EDIT: 318 car. VIN tag cleaned up. :BangHead::BangHead: