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#1
12-09-2008, 04:26 AM
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Re: 1969 Z/28 smog pipe GM NOS !!
ANYBODY, know the facts on what was original, correct coating for these smog tubes.......( NOT aeresol paint)
What about Black Zinc........????????
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Chuck Sharin [email protected] Auburn,WA (30 miles South of Seattle) 70 Camaro R/S Z-28, L-78, R/S SS 69 Camaro COPO "recreation" 
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#2
12-09-2008, 04:48 AM
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Re: 1969 Z/28 smog pipe GM NOS !!
I use gun blue.
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Bryan Paschal 1969 Cortez Silver Z/28 1969 Cortez Silver SS396 convertible 1971 Copper RS Z/28
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#3
12-09-2008, 05:03 AM
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Re: 1969 Z/28 smog pipe GM NOS !!
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...................... John Brown This isn't rocket surgery.....
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#4
12-09-2008, 07:50 AM
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Re: 1969 Z/28 smog pipe GM NOS !!
[ QUOTE ]
ANYBODY, know the facts on what was original, correct coating for these smog tubes.......( NOT aeresol paint) What about Black Zinc........???????? [/ QUOTE ] Black Zinc is correct. It will actually turn out brownish.
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Tommy Mathison
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#5
12-09-2008, 09:42 AM
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Re: 1969 Z/28 smog pipe GM NOS !!
Tommy, Interested to learn your source of info on the BLACK ZINC plating......
I've seen the Brown coloration you wrote about. May we assume this is after install and normal engine operation ????
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Chuck Sharin [email protected] Auburn,WA (30 miles South of Seattle) 70 Camaro R/S Z-28, L-78, R/S SS 69 Camaro COPO "recreation"
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#6
12-10-2008, 07:14 AM
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Re: 1969 Z/28 smog pipe GM NOS !!
[ QUOTE ]
Tommy, Interested to learn your source of info on the BLACK ZINC plating...... I've seen the Brown coloration you wrote about. May we assume this is after install and normal engine operation ???? [/ QUOTE ] Chuck, I showed several original survivor smog tubes to my plater and he confirmed that the plating used was indeed black zinc. The color can vary from black to brown to green after plating depending on several variables. As a second source, Jerry McNeish also lists black zinc is the correct smog tube plating on his website.
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Tommy Mathison
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#7
12-10-2008, 09:27 PM
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Re: 1969 Z/28 smog pipe GM NOS !!
I have since found out this is not for camaro and is for 69 and 70 Corvette with HP engine.
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