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Messages - jdv69z

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General Discussion / Re: Flint Engine Production
« on: March 26, 2018, 03:42:27 PM »
Known to you if you collect the data yourself.
I don't think the CRG intends to publish any data points on motors or any other part, as to not help the fraudsters.
I have gotten better at spotting fake trim tags, because I have started collecting images of real ones from certain time frames. So if I find a questionable Camaro, I usually post it on the CRG with my suspicions about the tag. And usually someone confirms my suspicions. So CRG likely will not post "here are all the good dates..."
But they will rule out or will give their opinion on anything questionable.

Not exactly what you may be seeking, but it is still an aid.

I don't think all the info the CRG has, needs to be so guarded, but still plenty of fraudsters out there that will restamp, or try to make an extra dollar off a dummy.

Maybe I have learned more by them not coming out and giving more info.

I am not seeking anything other than a better understanding of the whole manufacturing process. I understand perfectly well that CRG would not be giving out this type of data for obvious reasons. My point is that as more and more data points are added to the CRG database regarding 302 engine build dates/stamps the tougher it would be for fraudulent engines ( and Cars) to pass a CRG inspection. And that would be good for everyone. (except the forgers)

General Discussion / Re: Flint Engine Production
« on: March 24, 2018, 03:32:59 PM »
So in the CRG data base of Z/28's, 302 engines, if enough data points were observed, there would be a pattern of dates that the 302 was produced, and also a pattern of pad stamps for a given batch of engines. And then it could be determined if a pad stamp was legitimate based on the date and the pad stamp. Same as when a distributor stamp is observed, and someone comments that it is a "known good date". If that's reasonable, then I guess the next question would be: Are there enough data points in the data base now that allow for these patterns to be known? If so, it would make faking a block very difficult for anyone without the data base or knowledge of the patterns. At least if their forgery had to pass CRG inspection.

General Discussion / Flint Engine Production
« on: March 23, 2018, 03:43:29 PM »
So I understand that Flint was capable of producing every combination small block required during a typical production year. My question is, Did Flint produce a particular engine configuration in batches? Eg, would the 302 have been produced in batches of say, 100 at a time? As opposed to a random production sequence where every different engine produced could be a different configuration. It would seem that this batch approach would be a more efficient method?

Originality / Re: 1969 muncie 4spd id tag
« on: March 07, 2018, 11:12:18 PM »
The speedo gear was matched to the specific vehicle long after the tranny was assembled so no need for a different part number.

So when was the speedo gear installed? On the assembly line? So was it called out on the chassis broadcast sheet?

Originality / Re: 1967 Z-28 302
« on: February 18, 2018, 10:07:24 PM »
I'm sure the occasional wrong part got installed, but it seems like a lot of it these days is people trying to convince themselves they have something they do not using the assembly line error argument.

Correct me if I'm wrong, but I believe the carb would have been installed at the assembly plant, Norwood? So date wise, it's not directly correlated to the engine build date. Could be before or after, I think? But obviously before the car's assembly date.

Decoding/Numbers / Re: New member trying to find out what I have- Barn Find
« on: February 13, 2018, 07:52:29 PM »
Should be 68 builds, and would not have an X code on the tag. The only info which can be deduced from the tags are engine, (V8) , paint color, top color, and interior style/color. What are the VINs?

General Discussion / Re: X Codes
« on: February 13, 2018, 07:46:07 PM »
I was under the impression that it was needed for the assembly line for operations occurring before the trim tag was even installed.

I know 20,302 seems like a lot of cars, but back when they were new, you didn't see Z's too frequently. Yes, they were around, but there seemed to see a lot more SS's, and especially the SS Chevelles. They seemed to be everywhere. At least those are my 50 year memories.

Originality / Re: X66 standard trim
« on: February 01, 2018, 03:26:52 PM »
Have you removed the interior panel by the quarter windows and checked the quarter from the inside for original holes that may have been filled? I know you stated there was no evidence of any. Is that looking from the outside? Just an idea.

General Discussion / Re: Pair of ZL1 COPO's... at Auction.. :)
« on: January 12, 2018, 03:36:37 PM »
Never ceased to be amazed by how much money is out there, or is it debt??  ???

General Discussion / Re: Pair of ZL1 COPO's... at Auction.. :)
« on: January 05, 2018, 07:48:35 PM »
I didn't know that they disclosed the reserve?

Originality / Re: GM Heritage 1967 Camaro Video
« on: December 30, 2017, 05:08:48 PM »
My friend purchased the same car from the original owner in 1976. Butternut yellow with black top, 350 SS, with SS hubcaps. Except his was an automatic on the column with a bench seat. Was destroyed shortly thereafter by a drunk who broadsided it. It must have been an early car, because I distinctly remember the SS 350 gas cap. I think that gas cap was superceded when the big block SS came out.

Here's my original for comparison

General Discussion / Re: Vacuum shortage
« on: December 27, 2017, 02:07:45 PM »
Yes, I know what you mean. At 900 it sounds like it's going to stall. Increasing by a couple hundred rpm make sit sound much smoother.

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