I'm not trying to be contrary here, but have you tried looking for yourself? Picking up a magazine dealing with older Chevys? Done a Google search for '57 Chevy parts? Grabbed a Summit catalog? Asking other people to do your research for you is easy, but sometimes the info you dig out on your own is more valuable. You may find facts that you really weren't looking for at the time, but may be useful later.

For example, I typed "'57 Chevy parts" into Google, and got 154,000 links. Yep, 154,000. The last 10 might not be of much value, but the first hundred probably will be.

Again, I'm not picking on you for asking - just trying to give you a path that will help you in the long run. I'm always willing to help answer questions, but less so when the questioner appears to have put out little or no effort.

But just to show you I'm not just a grumpy old fart:

http://www.danchuk.com

http://www.carsinc.com

http://www.classicchevy.com