1970 chevelle cowl paint marking decoder - Chevelle Tech
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post #1 of 1 (permalink) Old May 25th, 20, 2:06 PM Thread Starter
Join Date: Mar 2020
Posts: 16
1970 chevelle cowl paint marking decoder

Hello everyone,
I’ve got my engine out for rebuild and cleaning up/restoring the engine bay. My wire brush exposed these markings from the assembly line and wondering if anyone knows what they stand for. Clearly the M21 is for my transmission. Guessing the ZL is for SS but missing the 3. Any thoughts on the Q18 code? It’s not my paint code (that’s 17-shadow grey)

Also I think I’ve seen a few really old posts on these marking but wondering if anyone has see either a kit or a type of marker to recreate these

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