Hey guys, I don't want to sound dumb here but I neeed to know some stuff on frame inspection marks that were put on in the factory. I look online at different chassis pictures of different camaro's (396, 427, etc.) and alot of them have different numbers/letters on pumpkin, frame etc. I need to know what some of these numbers mean, when they would be put there, and why. Some links telling all of this stuff would be great, but I know some stuff isn't that easy. I thank anyone that can help.

Start off by spending a few hours cruising this site, it has info. and pics of alot of markings you asked about. If you run into a dead end, post back and folks in TAG section will be able to help out.
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camaros.org site (http://www.camaros.org)