Ordered the judging manual from NCRS. Figured I would save a lot of time asking questions and can get back to work on the car.

Although, one more question. Was cleaning up one of the front dust shields (definitely not hot dip galvanized) and there is no part number. It looks just like the one Tim posted in post #3. Am I right in assuming that, just like the exhaust tips, the assembly line parts have no part number stamped on, but the over the counter replacement ones DO have a stamped part number?

BTW, I looked at the rears. Will be a while before i disassemble and get to them, but there does not look to be any bare metal on the edge.

Top Two pics are 2nd Gen Camaro NOS 2nd design with Rolled Edge (not Sharp)
Bottom Two pics are 70 Camaro Survivor ..........

I have always thought these were stamped form Galvanized Sheet....but wont argue
with Dave about non rusting edge............

Chuck. Gotta keep in mind that NOS isn't always the same as assembly line. Things changed over the years.

In the early 70s I purchased a brand new hi-rise for a 69 Z/28 from the local Chevy dealer. Instead of a 472 intake, I got a 2116 intake. They look identical.

Would vapor blasting clean my originals but leave the plating intact?

If not, how about dry ice blasting?