Just started scraping the crud from the underside of my 72 Z and found that the bottom of the car seems to be a copper,orangish color. Almost like red primer but it shines. Is this factory applied? The firewall is black until where the hump starts and undercoated behind the leaf springs. I,m trying to restore close to original, and was planning on painting the whole bottom black until I found this paint that looks original. The car was originally muslane blue, but has been repainted silver.Thanks

If it's a Norwood car, it should be red oxide on the bottom.

Can you explain more on "It's undercoated behind the leaf springs"..... Just fender wells or ??????

It is a paint and as Mulsane 71z said, the Norwood cars were done this way while the Van Nuys cars were all black underneath.
OEM makes spray cans that are a match for the red oxide.

The undercoat really starts at the backseat floor pan, looks possibly dealer applied. i'm not doing a concourse resto, just trying to stay stock as possible. don't suppose anyone has pics of a properly restored undercarriage? Thanks

Can anyone comment on this...

I've had both Norwood and Van Nuys Z28s and the Norwood car just seems to be painted more thoroughly than the L.A. car was. There is more car color deep inside the trunk and around the rear frame rail area. The L.A. car was color only on the outside skin.

Is this because of the climate where the car was likely to be sold or ??

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Aero80