Polishing Z valve covers - Team Camaro Tech
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post #1 of 5 (permalink) Old Apr 17th, 01, 12:14 PM Thread Starter
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I bought a set of the cast Z valve covers and they look horrible. Any ideas how to clean these things up and put a shine back into them?

1969 Cortez Silver Z28
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post #2 of 5 (permalink) Old Apr 17th, 01, 01:23 PM
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They didn't have a shine originally - just dull finish; but they DO look sweet when they're polished up. Oddly enough, the current generation of GM service parts ARE polished.

'69 Z28 Fathom Green
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post #3 of 5 (permalink) Old Apr 17th, 01, 01:41 PM
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Camaro Hi-Perf can re-skin them.

Original 1969 Z/28 covers were not polished; they had a natural dull finish. They are now serviced only in polished form. Might look cool but is incorrect for a restoration.

There is an excellent color photo of originals on the cover of an early 1970 Hot Rod magazine.
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post #4 of 5 (permalink) Old Apr 17th, 01, 01:56 PM Thread Starter
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Thanks for the info. These are dull as you say, but have dark and light spots all over them. Any suggestions on getting a good even "dull" color?

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post #5 of 5 (permalink) Old Apr 18th, 01, 05:44 AM
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I used a product called "Mr. Metal", a liquid paste bought at the grocery store, & mixed it 50/50 with Mother's aluminum polish.
About 10 scotch brite pads and a couple hours of elbow grease later, had the swap meet specials looking pretty good. You might also take them to a pro. The covers can be polished cleaned and then dulled with a rubbing compound.
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