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Griffin Aftermarket Aluminum Radiator

Griffin Aluminum Radiator
A pic of a Griffin Aluminum Radiator.


Afco Aftermarket Aluminum Radiator

Go to the Afco Racing Products Home Page

Afco Racing Radiator Here we see a pic of an Afco Racing Aluminum Radiator.



The Chevrolet Camaro Radiators.


Source of the article: camaros.org
Author:
Kurt Sonen

Radiator Tag Decoding

1967 UA and UN Tags
1967 UA and UN tags

All Original radiators had metal tags clipped to the header plate of the radiator core, next to the passenger side end tank. (When the end tank was attached, the solder would often also solder the tag to the radiator.) The tags were painted at the same time as the radiator and thus should be gloss black. These tags identify the radiator via a large-font broadcast code - a two-letter code that was used by the assembly plant to identify parts on the assembly line. Also stamped on the bottom edge of the tag, in a smaller font, was the radiator part number. The 1967 tags just had the broadcast code and the part number on it.

1969 ZH Tag
ZH tag

The 1968-1969 version of the radiator tag was larger than the 1967 tag and added the codes for the radiator end tanks in a smaller font next to the broadcast code. On this larger tag, beneath the broadcast code and tank codes, is a row with a 1 or 2 digit number and the letters O, R, or S. The meaning of this row of characters is unknown, as is the meaning of the extra number stamped after the part number. Note that with both 1967 and 1968/1969 tag formats, the radiator part number may not visible when the radiator shroud is installed and this number can be hard to read due to the size and the depth of the stamping. The 1969 ZH image below illustrates the various codes stamped on the tag, including the part number on the bottom edge of the tag.

The end tank codes were used by the radiator assembly plant to identify the different tank designs and use them in the correct radiator assembly.

The month code (letters A through M format, excluding I) is stamped on the RH end tank between the letters of the tank code.

The tank codes and applications are shown in the table below.

A 1969 small block automatic transmission radiator tag in the installed position on the radiator is shown below; the tag tells us that the ZA radiator should have IH and OF end tanks.

To the left of the tag is the OF tank code and between the O and the F is the month code, a C (for March). To the right of the tag is the clip to hold the overflow hose from the radiator cap.

1969 ZA Tag
ZA tag


Radiator End Tank Codes
Side Year Application Tank Code
Left Side 67-69 L6 and SB IH
  67-69 BB except 69 4-row core IL
69 4 core BB (curved neck) IO
Right Side 67-68 L6 and SB manual OD
  69 L6 and SB manual CB
67-69 L6 and SB auto
(exc 67-68 L30/L48 w/ V01 or AC)
OF
67-68 L30/L48 auto w/ V01 or AC - 23" OG
69 LF7/L14 auto w/ V01 or AC
67-68 BB manual OL
67-68 BB auto OM
69 BB manual OO
69 BB auto CH


Radiator Application Data, Codes, and Part Numbers

The following application data for the original radiator usage and broadcast codes was assembled from Chevrolet documentation, original cars, and vehicle broadcast sheets. Note that the service part numbers listed in GM parts manuals often superceded the original part numbers listed below.

Table cells colored in blue denote verified data (via cars or broadcast sheets), while the data in uncolored cells come from GM documentation. Cells colored in yellow denote assumed data based on GM documentation that suggests the listed usage. We would appreciate help with increasing the number of table cells that are confirmed via data from original cars.

In several applications, radiator usage changed during the production year; in those cases all usage codes are noted in the table. It is not clear if these changes were due to a purposeful engineering change or a temporary substitution due to a component shortage, but on the table they are noted based on time, i.e. as early or late production.



1967-1969 Radiator Part Numbers and Codes
1967 Manual Transmission   Automatic Transmission
Engine Broadcast
Code
Part No. Core
Rows
Core
Width (in.)
Fin Spac-
ing (in.)
Broadcast
Code
Part No. Core
Rows
Core
Width (in.)
Fin Spac-
ing (in.)
L26 UC 3010173 2 21 0.28 UD 3010174 2 21 0.25
L26 HD UE 3010175 2 21 0.16 UF 3010176 2 21 0.16
L22 UA 3010171 2 21 0.22 UB 3010172 2 21 0.22
L22 V01/AC UE 3010175 2 21 0.16 UF 3010176 2 21 0.16
LF7 UG 3010177 2 21 0.20 UF 3010176 2 21 0.16
LF7 V01/AC UH 3010178 3 21 0.16 UI 3010179 3 21 0.16
L30 UG 3010177 2 21 0.20 UF 3010176 2 21 0.16
L30 V01/AC UJ 3010180 3 23 0.18 UK 3010181 3 23 0.18
L48 UG 3010177 2 21 0.20 UF 3010176 2 21 0.16
L48 V01/AC UJ 3010180 3 23 0.18 UK 3010181 3 23 0.18
Z28 UH 3010178 3 21 0.16 n/a n/a n/a n/a n/a
396 UN 3013684 3 23 0.16 UO 3013685 3 23 0.16
 
1968 Manual Transmission   Automatic Transmission
L26 UC 3010173 2 21 0.28 UD 3010174 2 21 0.25
L26 HD UE 3010175 2 21 0.16 UF 3010176 2 21 0.16
L22 UA 3010171 2 21 0.22 UB 3010172 2 21 0.22
L22 V01/AC UE 3010175 2 21 0.16 UF 3010176 2 21 0.16
LF7 UG 3010177 2 21 0.20 UF 3010176 2 21 0.16
LF7 V01/AC UH 3010178 3 21 0.16 UI 3010179 3 21 0.16
L30 UG 3010177 2 21 0.20 UL 3016782 2 21 0.18
L30 AC/HD UJ* 3010180 3 23 0.18 UK 3010181 3 23 0.18
ZB** 3017132 3 21 0.18
L48 UG 3010177 2 21 0.20 UL 3016782 2 21 0.18
L48 V01/AC UJ 3010180 3 23 0.18 UK 3010181 3 23 0.18
Z28 UH 3010178 3 21 0.16 n/a n/a n/a n/a n/a
396 UN 3013684 3 23 0.16 UO 3013685 3 23 0.16
396 AC UY 3016688 4 23 0.16 UZ 3016689 4 23 0.16
 
1969 Manual Transmission   Automatic Transmission
L26 UC 3010173 2 21 0.28 UB 3010172 2 21 0.22
L26 HD UE 3010175 2 21 0.16 UF 3010176 2 21 0.16
L22 UC 3010173 2 21 0.28 ZA 3016719 2 21 0.20
L22 V01/AC UE 3010175 2 21 0.16 UF 3010176 2 21 0.16
L14 UA 3010171 2 21 0.22 ZA* 3016719 2 21 0.20
UL** 3016782 2 21 0.18
L14 V01/AC ZB 3017132 3 21 0.18 ZC 3017131 3 21 0.18
LF7 UA 3010171 2 21 0.22 ZA 3016719 2 21 0.20
LF7 V01/AC UH 3010178 3 21 0.16 ZC 3017131 3 21 0.18
LM1 UG 3010177 2 21 0.20 UF 3010176 2 21 0.16
LM1 V01/AC UH 3010178 3 21 0.16 UI 3010179 3 21 0.16
L65 UG 3010177 2 21 0.20 UF 3010172 2 21 0.16
L65 V01/AC UH 3010178 2 21 0.16 UI 3010179 2 21 0.16
L48 UG* 3010177 2 21 0.20 ZA 3016719 2 21 0.20
ZH** 3020093 2 21 0.18
L48 V01/AC US 3014187 3 21 0.20 UR 3014186 3 21 0.20
Z28 UH 3010178 3 21 0.16 n/a n/a n/a n/a n/a
396 ZD 3017837 3 23 0.16 ZE 3017838 3 23 0.16
396 AC UY 3018624 4 23 0.16 UZ 3018623 4 23 0.16
COPO UY 3018624 4 23 0.16 UZ 3018623 4 23 0.16

*early production     **later production   (see note above)
Blue is Confirmed Data
Yellow is Assumed Data

Note: the late 68 L30/L48 V01/AC radiator is indicated in GM documentation to change from the 23" version to the 21" 3010178 (manual) and 3010179 (auto) radiators. These usages have not been verified. In fact, a late production 1968 manual car with V01 has been documented with the 21" 3017132 ZB radiator. This would suggest the radiator size did change to 21" on these applications, but that GM documention is incorrect on which radiator was used.

See also: Radiator Introduction
See also: Radiator Variables
See also: Radiator Usage
See also: Radiator Fan Shrouds
See also: Radiator Cooling Fan

Source: Camaro Research Group - camaros.org

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