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Author Topic: Original fan belt  (Read 909 times)
BULLITT65
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« on: December 27, 2013, 01:37:30 PM »

Hey guys, I am trying to figure out what the original part number for the 1969 Z/28 fan/alternator/smog belt is. I see in the AIM it says for a sbc with a manual it is GM3883248, but then see the repop guys list a part number GM3932457, although I didn't find this in the AIM.
In addition to the part number I am also trying to figure out what is assembly line correct. I have seen 2 versions of GM belts, ones that have the GM number stamped/pressed in , and have also seen the part number raised off of the belt in a crisp font. See pic (Thank you Hans for digging those out)
Hans pic of his belts came off a 69 Los Angeles car, not sure if the Norwood parts bin would be the same, or if there was an earlier and later version of the belt(s).
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1969 garnet red Z/28 46k mile unrestored X77
Looking for 3192477 (front) spiral shocks 3192851 (rear) please
Looking for an original LOF soft ray windshield
Looking for original Delco side post negative battery cable part # 6297651AV
68camaroz28
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« Reply #1 on: December 28, 2013, 07:34:51 AM »

Hey guys, I am trying to figure out what the original part number for the 1969 Z/28 fan/alternator/smog belt is. I see in the AIM it says for a sbc with a manual it is GM3883248, but then see the repop guys list a part number GM3932457, although I didn't find this in the AIM.
In addition to the part number I am also trying to figure out what is assembly line correct. I have seen 2 versions of GM belts, ones that have the GM number stamped/pressed in , and have also seen the part number raised off of the belt in a crisp font. See pic (Thank you Hans for digging those out)
Hans pic of his belts came off a 69 Los Angeles car, not sure if the Norwood parts bin would be the same, or if there was an earlier and later version of the belt(s).
The 3883248 is listed under GM part belts as 47.5" in length vs. the GM3932457 listed at 46.5" in length. You probably know that Quanta sells the repro belts http://www.gastanks.com/prodinfo.asp?number=29-B-450 Later service replacement 3883248 belts had the same type of printing as the current quanta repro belt. Maybe back in the day GM had a couple suppliers and one had raised letters/numbers and the other supplier was opposite.
« Last Edit: December 28, 2013, 07:54:39 AM by 68camaroz28 » Logged

Chick
68 Z/28 NOR 01B Orig motor/trans/rear
69 Z/28 NOR 07A Orig Block & GM Cross-ram/carbs
69 L34 Rest. Nova Father/Son Car
69 L78 Surv Nova Purch 4/69 31K miles
67 L89 Corv Tribute
68 Corv 427/400 Orig motor
07 Corv Z06
R 68Z build- http://www.camaros.net/forums/showthread.php?t=182584
68camaroz28
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« Reply #2 on: December 28, 2013, 07:56:41 AM »

I had saved these from a NOS service replacement sold on ebay.


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Chick
68 Z/28 NOR 01B Orig motor/trans/rear
69 Z/28 NOR 07A Orig Block & GM Cross-ram/carbs
69 L34 Rest. Nova Father/Son Car
69 L78 Surv Nova Purch 4/69 31K miles
67 L89 Corv Tribute
68 Corv 427/400 Orig motor
07 Corv Z06
R 68Z build- http://www.camaros.net/forums/showthread.php?t=182584
JKZ27
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« Reply #3 on: December 28, 2013, 10:00:45 AM »

The A/C belt I took off of my NOR 69 had the raised print. It may have been original to the car.
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69 RS/SS Cortez Silver, L48 MC1
68 RS Ash/Ivy Gold 327EFI M20
79 Z28 Brown LM1 M21
04 SRT 10
BULLITT65
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« Reply #4 on: December 28, 2013, 01:22:17 PM »

Hey Chick I recently saw that auction for that replacement belt as well, ( I also saved the pics), thanks for posting the pics. Hans and JKZ have had the raised original belts, which made me think the raised was assembly line correct. Is it any different for 67 or 68, did they use exclusively one style from the factory?
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1969 garnet red Z/28 46k mile unrestored X77
Looking for 3192477 (front) spiral shocks 3192851 (rear) please
Looking for an original LOF soft ray windshield
Looking for original Delco side post negative battery cable part # 6297651AV
68camaroz28
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« Reply #5 on: December 28, 2013, 08:00:29 PM »

Hey Chick I recently saw that auction for that replacement belt as well, ( I also saved the pics), thanks for posting the pics. Hans and JKZ have had the raised original belts, which made me think the raised was assembly line correct. Is it any different for 67 or 68, did they use exclusively one style from the factory?
Wish I knew! Smiley I'm thinking 67 & 68 had a little different inch span so a different part number was needed. Since our 68Z restoration has the repro headers the smog is not used so never researched that topic properly. Not sure any of us would be surprised to know a couple suppliers were used which included both types of belt identification, but the only ones I remember were the ones similar to what Quanta sells. Need to check some of my NCRS judging books and see what they note back during that time frame.
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Chick
68 Z/28 NOR 01B Orig motor/trans/rear
69 Z/28 NOR 07A Orig Block & GM Cross-ram/carbs
69 L34 Rest. Nova Father/Son Car
69 L78 Surv Nova Purch 4/69 31K miles
67 L89 Corv Tribute
68 Corv 427/400 Orig motor
07 Corv Z06
R 68Z build- http://www.camaros.net/forums/showthread.php?t=182584
BULLITT65
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« Reply #6 on: December 29, 2013, 12:32:18 AM »

Chick, I knew you guys would have some old relic of a judging book from back in the day. "What a great group of guys" that can go back in time and find resources like that... Cheesy
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1969 garnet red Z/28 46k mile unrestored X77
Looking for 3192477 (front) spiral shocks 3192851 (rear) please
Looking for an original LOF soft ray windshield
Looking for original Delco side post negative battery cable part # 6297651AV
68camaroz28
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« Reply #7 on: December 29, 2013, 03:04:36 PM »

Chick, I knew you guys would have some old relic of a judging book from back in the day. "What a great group of guys" that can go back in time and find resources like that... Cheesy
The reference I was referring to is not old judging material but the latest in NCRS judging material as they continually update and add information with later edition manuals. Checking our 68/69 NCRS technical and judging manual on P81 it states "All GM belts have a GM part number molded as indentions into or as raised characters on the belt. White, green, or yellow GM numbers are a service replacement. Some original GM belts had the manufacturer logo stamped in color in the belt."
So as we thought, they were both ways.
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Chick
68 Z/28 NOR 01B Orig motor/trans/rear
69 Z/28 NOR 07A Orig Block & GM Cross-ram/carbs
69 L34 Rest. Nova Father/Son Car
69 L78 Surv Nova Purch 4/69 31K miles
67 L89 Corv Tribute
68 Corv 427/400 Orig motor
07 Corv Z06
R 68Z build- http://www.camaros.net/forums/showthread.php?t=182584
BULLITT65
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BULLITT65
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« Reply #8 on: December 30, 2013, 01:01:41 AM »

When judging do you compile any original pictures of certain parts to compare against future cars if there is questionability with a particular part or area of a particular car? I just thought you must see the best of the best, so a picture reference book of originality may be a tool possibly.
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1969 garnet red Z/28 46k mile unrestored X77
Looking for 3192477 (front) spiral shocks 3192851 (rear) please
Looking for an original LOF soft ray windshield
Looking for original Delco side post negative battery cable part # 6297651AV
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