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Author Topic: 1969 DZ 302 motor  (Read 24329 times)

graybarn

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1969 DZ 302 motor
« on: October 07, 2012, 03:13:19 PM »
I have a 302 DZ motor with the following marking:
VO605DZ
Serial # 12N6321 (there is another digit after the one but can't tell if it is a 1 or a 4)
Number is very hard to read
I have owned this motor since the early 70's
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bertfam

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Re: 1969 DZ 302 motor
« Reply #1 on: October 07, 2012, 03:15:14 PM »
graybarn, can you post a picture of the engine pad and the VIN? The VIN should start with 19N, not 12N. Also, if you put a light at an angle to the VIN, you might be able to make out the last number.

Thanks
Ed
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william

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Re: 1969 DZ 302 motor
« Reply #2 on: October 07, 2012, 03:40:21 PM »
A Camaro with a VIN of N632xxx would have been final-assembled April 24 or 25 and would not have a June 5 engine.

Check all the numbers more carefully.
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graybarn

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Re: 1969 DZ 302 motor
« Reply #3 on: October 07, 2012, 05:50:15 PM »
A picture of the pad is attached.
For the serial I have tried light at different angles, magnifying glass and even high res pictures.
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graybarn

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Re: 1969 DZ 302 motor
« Reply #4 on: October 07, 2012, 05:56:13 PM »
Picture of the Serial Number
Not sure if it helps
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69Z28-RS

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Re: 1969 DZ 302 motor
« Reply #5 on: October 08, 2012, 08:44:33 PM »
that VIN stamping, while not totally legible in your photo, seems pretty typical of the rough cast surface stampings I've seen.    I don't think the '6' is the first digit of the sequence number; there is space for another numeral before the 6 that is not detectable in the photo.    I also see the leading digits as '1 9 N'..  not the  '12N' that you thought.     With rough sand-cast surfaces, there are places where the digits just don't come thru.   It would help if you had the car VIN, that would probably help you decode the stamping...  :)
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graybarn

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Re: 1969 DZ 302 motor
« Reply #6 on: October 08, 2012, 11:40:43 PM »
Thanks for the heads up on the digit between the N and the 6.  I will look again to see if I can spot it.
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wisemanz28

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Re: 1969 DZ 302 motor
« Reply #7 on: October 09, 2012, 12:07:36 AM »
It looks like 686321
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lynnbilodeau

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Re: 1969 DZ 302 motor
« Reply #8 on: October 09, 2012, 02:51:19 PM »
68xxxx seems a little late for a June 5 motor.  I know of two 08A Z/28's  671xxx cars with July 2 motors, and another 08A Z that had an August 1 engine.  More likely 66321X, or something close.  I realize it wasn't fifo with the engines, but still seems a bit early for a 686xxxx.  Of course, some of you guys have huge databases (in comparison) so perhaps I am off on this. 
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69Z28-RS

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Re: 1969 DZ 302 motor
« Reply #9 on: October 09, 2012, 03:24:22 PM »
Quote from: lynnbilodeau on October 09, 2012, 02:51:19 PM
68xxxx seems a little late for a June 5 motor.  I know of two 08A Z/28's  671xxx cars with July 2 motors, and another 08A Z that had an August 1 engine.  More likely 66321X, or something close.  I realize it wasn't fifo with the engines, but still seems a bit early for a 686xxxx.  Of course, some of you guys have huge databases (in comparison) so perhaps I am off on this.  
Based on the 5June69 engine assembly date, it was probably a June VIN, which would indicate a VIN between '650323' and '664008'.    The digits that are legible in the stamp on the casting could certainly fall into that range.   I suspect if you re-examine the photo (or the block)..  use some chalk or some other means to enhance the stamping, you can probably take a better photo and discern what the VIN most likely was...
 ie. possibly 66321x  ??

Gary / 69Z28-RS
« Last Edit: October 09, 2012, 04:01:55 PM by 69Z28-RS »
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69Z28-RS

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Re: 1969 DZ 302 motor
« Reply #10 on: October 09, 2012, 04:09:08 PM »
PS.  Using that information, we could also project that this engine went into a car with VIN 66321x, and was built on 27June1969 (a Friday), and the 20th of the 21 work days that month.   The 3 weeks between engine assembly (5June) and car build (27June) is exactly in line with the time between the engine build and my 09C car production.

Gary
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69 Corvette, '60 Corvette, '72 Corvette
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55-'56-'57 Nomads, '55-'57 B/A Sedan

william

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Re: 1969 DZ 302 motor
« Reply #11 on: October 10, 2012, 12:38:38 AM »
Don't base anything on one data point.

My NOR Z/28 db has almost 700 examples and 3 weeks is well off the norm. It depends on when a car was built. During peak Z/28 production periods it is not unusual to see engine installations 7-10 days after build. During slow production months [July '69 2 weeks, Aug '69 3 weeks] DZ engine inventory increased. When production picked up again in Sep some cars received June engines. By late Sep engine dates were back to 7-10 day installation.

Don't apply this thinking to Van Nuys. Because of the distance VN kept more engine inventory and of course it aged. Also the data hints that some engine dates are unique to a specific plant.
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x77-69z28

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Re: 1969 DZ 302 motor
« Reply #12 on: October 10, 2012, 03:20:43 AM »
Maybe it's just me, but blowing up that pic almost looks like666321
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69Z28-RS

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Re: 1969 DZ 302 motor
« Reply #13 on: October 10, 2012, 04:54:24 AM »
Unfortunately, since he only has the engine, and a *partial* VIN reading, we have few data points.   And it IS a Norwood build, we know that.    My only point was that the two things we know (engine assembly date and partial VIN), they are compatible...

Gary
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69 Corvette, '60 Corvette, '72 Corvette
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55-'56-'57 Nomads, '55-'57 B/A Sedan

graybarn

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Re: 1969 DZ 302 motor
« Reply #14 on: October 11, 2012, 12:02:10 AM »
Would you guys have a rough idea as to what the engine is worth, outside the unlikely event that someone out there actually still have the car it came out of?
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