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Radiator Cap stampig

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Old Aug 26, 2020 | 12:17 PM
  #1  
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Car: 1986 Iroc-z, 1968 Camaro RS-ss
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Radiator Cap stampig

Ok.
I am in the process of documenting my brother 1982 pace car. I noticed that it appears to have a date code stamped on the center rivet.
Is this indeed a date code?
If so when did they stop doing that as my 1986 doesnt have a date code. It is a different cap. My 1986 looks like it could have had 1 but not sure.
Are you guys seeing this on your caps?

1982 pace car

1986 LB9 Iroc-z
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Old Aug 29, 2020 | 06:45 PM
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Re: Radiator Cap stampig

I'll have to check mine. It's on the lift so it needs to wait until tomorrow, though.
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Old Aug 31, 2020 | 06:26 AM
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Car: 1986 Iroc-z, 1968 Camaro RS-ss
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Re: Radiator Cap stampig

thanks
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Old Aug 31, 2020 | 02:13 PM
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Re: Radiator Cap stampig

Made In England Caps Have No Stamping.


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Old Sep 1, 2020 | 07:07 AM
  #5  
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Car: 1986 Iroc-z, 1968 Camaro RS-ss
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Re: Radiator Cap stampig

GT4373 What Year car is this off of?
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Old Sep 1, 2020 | 08:35 AM
  #6  
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Re: Radiator Cap stampig

Originally Posted by randyhummel
GT4373 What Year car is this off of?

1984
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Old Sep 2, 2020 | 11:53 AM
  #7  
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Re: Radiator Cap stampig

1990 Made in England cap - no stamp
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Old Sep 2, 2020 | 02:25 PM
  #8  
randyhummel's Avatar
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Car: 1986 Iroc-z, 1968 Camaro RS-ss
Engine: 305, 396
Transmission: auto
Re: Radiator Cap stampig

Originally Posted by scottmoyer
I'll have to check mine. It's on the lift so it needs to wait until tomorrow, though.
Scott did you get a change to look at the 1 on your pace car? Was it made in mexico and does it have the stamping I am thinking is a date code.
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Old Sep 6, 2020 | 01:03 AM
  #9  
84 1LE's Avatar
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Re: Radiator Cap stampig

I always thought that number was the pressure rating in metric or some other non-standard rating
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Old Sep 7, 2020 | 04:55 PM
  #10  
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Car: 1985 Z28
Engine: 305
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Re: Radiator Cap stampig

Is that first picture an original radiator cap? It looks like a Stant. Wouldn't GM have used an AC?
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Old Sep 7, 2020 | 08:20 PM
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Re: Radiator Cap stampig

Here is my 92 cap. I am guessing it is aftermarket.
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Old Sep 8, 2020 | 12:59 PM
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Re: Radiator Cap stampig

Originally Posted by topduarte
Here is my 92 cap. I am guessing it is aftermarket.
its not factory. its what I run on mine, wasnt sure if I should trust the 30 year old radiator cap that sits and is admired on my desk at home.
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