1969 Z/28 Camaro "472" Intake Manifold Expansion Plug

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**dvss1** · #1 06-24-2017, 12:12 AM

I got lucky some years ago and ordered them from McMaster Carr. Ordered 25 (smallest quantity to order) and half of them didn't come with the stamp. Sorry I told a few friends and they all got scooped up. That stamp in most of those freeze plugs is actually pretty deep. Some were almost 30 thousandths deep.

**Edgemontvillage** · #2 06-24-2017, 04:52 AM

Quote:

Originally Posted by dvss1

I got lucky some years ago and ordered them from McMaster Carr. Ordered 25 (smallest quantity to order) and half of them didn't come with the stamp. Sorry I told a few friends and they all got scooped up. That stamp in most of those freeze plugs is actually pretty deep. Some were almost 30 thousandths deep.

"That stamp in most of those freeze plugs is actually pretty deep'" Yes, I've experienced that trying grind it off.

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