Smog/AIR "tree" finish ??????
 

Cant ask Bill Hoedel ...not answering phone at 330-832-0871

What is correct (exact) finish on 1970 Smog "Trees"

I often read about the Greenish Hue............

I've also read about Black Zinc..........but dont know
what's correct ??

Black Zinc Without the Brightner or ???

----Bill is a really old friend from back in my Medina Ohio days, and you have me worried. I'm going to reach out to a few of our mutual friends and see what I can find out!....Bill S

I sent the original smog tubes from my COPO to Mike Gibbons at Brake Boosters/Detail Plating. He plated them black zinc which produced the greenish color. They passed Legends judging without deduction.

Jim

JJR, Ive read about Black Zinc , so Im glad to read that's what you had done....

If you look at other Clear Zinc and Yellow Zinc on your Restoration the zinc plating has a brightner applied over the zinc..........

Hard to tell but I'm guessing your smog trees are not to shiny, so maybe no brightner ???? Can you find out ..........Thanks

Black Zinc is what I had done with mine. Look like new. Trans dipstick tube is also the same...Joe

What about GM service replacements

Apparently their is ACID Zinc Plating & ALKALINE Zinc Plating

They are quite different (GOOGLE) with different finish "looks"

Anyone reading this have experience/knowledge on what kind
of Zinc Plating looks correct for the smog "trees"