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-   67-69 Firebird TECH (https://forums.maxperformanceinc.com/forums/forumdisplay.php?f=432)
-   -   1968 radiator tank codes (https://forums.maxperformanceinc.com/forums/showthread.php?t=880781)

grandam1979 06-12-2025 08:24 PM

1968 radiator tank codes
 
Can’t find code NO any info on tanks codes? Thanks

OG68 06-12-2025 09:38 PM

Should be a radiator chart in the service manual under the engine cooling chapter. Codes are listed there IIRC.

Tellyshavilli 06-13-2025 12:45 AM

Quote:

Originally Posted by grandam1979 (Post 6568800)
Can’t find code NO any info on tanks codes? Thanks

What application

grandam1979 06-13-2025 11:35 AM

Quote:

Originally Posted by Tellyshavilli (Post 6568838)
What application

1968 Firebird

OG68 06-13-2025 11:47 AM

1 Attachment(s)
Not sure if this is what you're looking for...

grandam1979 06-13-2025 01:50 PM

Quote:

Originally Posted by OG68 (Post 6568912)
Not sure if this is what you're looking for...

Thanks unfortunately I don’t see NO

grandam1979 03-12-2026 07:51 PM

2 Attachment(s)
I can’t find it at all anybody ever see one with NO code?

OG68 03-12-2026 11:05 PM

That would be an ON code. I did a quick search and all I found was a Camaro forum question regarding an ON tank code found on a 68 Camaro. No one there knew what it was either.
Possible replacement radiator?

JimFB400HO 03-12-2026 11:31 PM

The ON or NO is the tank code while the codes in the list posted is the assembled radiator codes. I have never seen a chart with the tank codes.

The codes (Camaro perspective) are explained by the CRG at https://www.camaros.org/coolingsystems.shtml#usage

I believe my '68 has the original UP code (400 w/AT) Harrison. It also has the ON/NO tank code. Was the ON used for other radiator assemblies? I don't know. Perhaps a good old radiator shop would have a Harrisom parts cross reference book??? I had my original radiator recored in '78, 86, and 11. The UP code tag/plate was missing so I had one added in 2011 during the restoration.

Held for Ransom 03-13-2026 11:14 AM

The IL and ON tanks were used on the '68 or "69 UP radiator.


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