1957 Buick gurus, got a question for you.

Do all the Buick model lines use the same grille? Thanks, Pat

 

bttt, still looking for an answer. Thanks.

 

Yes!

And they all have the center bar where the emblem says 1957 on it.

 

Actually they do not. There are 2 sizes. Depending on wether the car is a Roadmaster, Century, Special, or a Super.

 

What "Zman" said. More specifically, the Special and the Century share the smaller, more narrow body as opposed to the wider, longer "big-body" Super and Roadmaster -cars.

 

The next Question is which one fits the 57 Chevy without modifying and what are the measurments or features that distinguish them from one another.

 

Neither fits without modifying, the smaller one takes less work.

 

The smaller grill has a shape that more closely matches the shape of the bumper and the hood tie bar making for a neater fit and finish.