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Tech Editor's Desk Projects, papers, writings, thoughts, musings of our technical editor Joe Padavano. To begin with, he will be making threads and can approve posts to it if he wishes. This can be changed in the future if it does not work out well.

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Old January 5th, 2009, 11:54 AM   #1
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GM VIN Decoder 1972-2009

With AOL Hometown shutting down, Drew Senko's Oldsmobile VIN decoder is offline. I stumbled across this link from the GM Service organization. Very helpful.

http://service.gm.com/dealerworld/vincards/
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Old January 5th, 2009, 01:26 PM   #2
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That is VERY helpful. Thanks for unearthing it.
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Old January 6th, 2009, 02:24 AM   #3
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This one still works: http://www.v8cars.hu/oldsvin/decode.php

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Old January 18th, 2009, 12:50 AM   #4
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love the vin decode site

This is What my Vin pulled upYear:1972Division:OldsmobileSeries:Cutlass SupremeBody:Holiday Hardtop (2 door)Engine:350 (5.7) V8 4BBLPlant:Arlington, TexasSerial Number:183198My ?? is what kind of motor came in these cars that year ?? 442,403,455,350 and did some of these cars have the dual gate shift avail ???my does have floor shifter but my console was all ready gone.
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Old June 17th, 2009, 01:48 AM   #5
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Good thing you’ve stumbled across this link..its really helpful for me too..i hope mazda parts has this decoders too..

Last edited by kurtdaniel; June 22nd, 2009 at 06:23 PM.
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Old October 12th, 2010, 12:17 PM   #6
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Thanks also. Just took delivery of a 75 Olds Delta 88 that was advertised as a 350 4bbl. Vin shows engine code "T" = 455 4BBl.....sweetens the deal even more !
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Old October 12th, 2010, 03:37 PM   #7
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Quote:
Originally Posted by fmbjogger View Post
Thanks also. Just took delivery of a 75 Olds Delta 88 that was advertised as a 350 4bbl. Vin shows engine code "T" = 455 4BBl.....sweetens the deal even more !
Just be careful that the engine in the car now may not be the one it was born with.
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62 F-85 Deluxe wagon (the NV desert car)
62 F-85 Deluxe wagon (the San Jose car)
64 Vista Cruiser
64 Jetstar 88 Conv
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Old March 31st, 2011, 04:55 PM   #8
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thank you so much this helped tremendously
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Old April 3rd, 2011, 04:00 PM   #9
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Quote:
Originally Posted by egknz View Post
This is What my Vin pulled upYear:1972Division:OldsmobileSeries:Cutlass SupremeBody:Holiday Hardtop (2 door)Engine:350 (5.7) V8 4BBLPlant:Arlington, TexasSerial Number:183198My ?? is what kind of motor came in these cars that year ?? 442,403,455,350 and did some of these cars have the dual gate shift avail ???my does have floor shifter but my console was all ready gone.
In '72 there was the 350 (standard displacement) and the 455 (optional) and yes the dual gate (W-26) could be ordered in '72. Hope this helps.
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Old April 6th, 2011, 08:46 PM   #10
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Quote:
Originally Posted by egknz View Post
My ?? is what kind of motor came in these cars that year ?? 442,403,455,350 .
hey egknz What cars came with a 442 in them?

lol

Last edited by alek72us; April 6th, 2011 at 09:04 PM.
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Old April 6th, 2011, 08:57 PM   #11
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There never was a 442 cid motor.

To be honest, I don't think I ever expected to have to say that to an Olds owner. :-)
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Old April 6th, 2011, 08:58 PM   #12
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On a somewhat related note, I think some of you may find this handy:

http://www.gmheritagecenter.com/gm-h...tion-kits.html
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Old April 6th, 2011, 09:00 PM   #13
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Excactly i hate it when people come up to me and ask me if there is a 442 ci engine in my car its one of my biggest pet peeves.

it funny when people ask if it has the 442 engine in it because i say the 455 yeah.
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Old April 6th, 2011, 09:07 PM   #14
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Good find Joe. Thanks for the links guys.

Subscribed to keep this in my favorites for future use.
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Old May 12th, 2011, 08:24 PM   #15
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Quote:
Originally Posted by joe_padavano View Post
With AOL Hometown shutting down, Drew Senko's Oldsmobile VIN decoder is offline. I stumbled across this link from the GM Service organization. Very helpful.

http://service.gm.com/dealerworld/vincards/
I put in the VIN from my wife's grocery getter which is a Tahoe and it gave me FOUR whole pages of RPO codes (options) and stated that the rarity was one of two with the same options and one of six with at least those same options put out by Janesville, WI. Pretty neat stuff, Thanks Joe! There were some RPO's that I didn't understand though. Would you know where I could decode the codes?
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'72 Cutlass Supreme U code 455 Loaded with Factory Options


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Old May 23rd, 2011, 09:53 PM   #16
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Smile Thanks for the info. Decodes my 72 Olds Delta Convert exactly.

Quote:
Originally Posted by 88 coupe View Post
This one still works: http://www.v8cars.hu/oldsvin/decode.php

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Old February 1st, 2012, 10:53 AM   #17
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Some AWESOME links posted in this thread ..... THANK YOU !!
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Old February 1st, 2012, 11:36 AM   #18
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Yeah, definatly worth saving!!
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Old February 20th, 2012, 11:17 PM   #19
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I thought I made a comment on this already , my post went away... oh well , good job!!!!
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Old May 9th, 2014, 12:22 PM   #20
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On the engine stamping pad, under the #1 cylinder. This is called a VIN derivative.

Click the image to open in full size.

The stamped information (if Olds 403) will be
3 (olds) 7,8,9 (last number of year) (letter code indicating plant) followed by XXXXXX (number sequence of original car)
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Old May 9th, 2014, 02:54 PM   #21
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Quote:
Originally Posted by Earls63304 View Post
Newbie here, so pls. forgive. Just bought a 1973 Cutlass S (VIN 3G37K3M382291). Owner said that the engine (K code 350) was replaced with newer ('late 70s) 403 c.i. Question: Where on the engine do i look to find the approp. #s to determine the needed specs mechanically, year, etc. (i.e. get the right parts for tune ups, parts replacements when needed)?
As Allan points out, the VIN derivative will tell you the year of the block. It won't tell you the displacement, however. Olds blocks have a casting number on the small shelf above the water pump, next to the oil fill tube. The photo below is of a late 1970s 350 block. Of course, on 403 motors, there's a large "403" cast into each side of the block, where the freeze plugs are.

Click the image to open in full size.
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62 F-85 Deluxe wagon (the NV desert car)
62 F-85 Deluxe wagon (the San Jose car)
64 Vista Cruiser
64 Jetstar 88 Conv
66 442 L-69 Conv
68 W-30
69 H/O
69 442
70 W-30
72 442
84 Custom Cruiser
86 Caprice wagon (w/307 Olds)
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Old May 9th, 2014, 03:11 PM   #22
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Exactly.
The 403 should have a casting number 557265 or 553390. One other point of clarification...just in case. The 403 is a small block engine. Don't be fooled that the 4 in the 403 means its big block. Color on the 403 should be blue, although anyone with a rattle can spray paint can change that to whatever they want.

The 403 is really well marked on the side of the block to the rear of the motor mounts above the frost plugs as Joe mentioned. 403's also have a distinctive valve cover. Note that it uses less bolts to secure, and some of the flanged areas are not pierced to accept VC bolts.

Click the image to open in full size.
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Old May 9th, 2014, 03:22 PM   #23
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Quote:
Originally Posted by Allan R View Post
403's also have a distinctive valve cover. Note that it uses less bolts to secure, and some of the flanged areas are not pierced to accept VC bolts.
If you read all of the O.P.'s threads, you'll find out that this 403 has a points distributor, so if it really is a 403, it's apparently a frankenmotor. The original 403 valve covers used five bolts, but without more details on head casting numbers, etc, there's no way of knowing what parts are on that motor. It may just be a 403 short block with other parts from the original 350, or who knows what.
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62 F-85 Deluxe wagon (the NV desert car)
62 F-85 Deluxe wagon (the San Jose car)
64 Vista Cruiser
64 Jetstar 88 Conv
66 442 L-69 Conv
68 W-30
69 H/O
69 442
70 W-30
72 442
84 Custom Cruiser
86 Caprice wagon (w/307 Olds)
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Old May 9th, 2014, 03:33 PM   #24
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Quote:
Originally Posted by joe_padavano View Post
If you read all of the O.P.'s threads, you'll find out that this 403 has a points distributor, so if it really is a 403, it's apparently a frankenmotor. The original 403 valve covers used five bolts, but without more details on head casting numbers, etc, there's no way of knowing what parts are on that motor. It may just be a 403 short block with other parts from the original 350, or who knows what.
Hmmm, good 'points'. My vallium must be kicking in from all that caffeine earlier....

It would be helpful if he posted a picture in one of his threads that shows the engine.
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Old May 9th, 2014, 03:33 PM
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