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It is based on the casting date and yours is day #357 which is Wednesday December 8, 1969, so the number 3 holds valid.
You've conveniently ignored the "2" on a 1969 model year car. The 41 day number shows Feb 10, which would be 1968 if the "2" was the year. Only FIVE months before the first 69s were built... What's the build date on the car?
[QUOTE=joe_padavano;1408721]You've conveniently ignored the "2" on a 1969 model year car. The 41 day number shows Feb 10, which would be 1968 if the "2" was the year. Only FIVE months before the first 69s were built... What's the build date on the car?[/QUOTE
So car built at the very end of March 1969, but a "2" mold number and a Feb 10 casting date. Sorry, but Feb 10 1969 in a car assembled the end of March makes a LOT more sense. I guess that shoots a hole in the "calendar year" theory, which would have been a "3" if it were true.
As far as I know, GM foundry did not have a year identifier in any casting. I was at one time deep into midyear Corvette restoration and never encountered a year indicator on any of the Corvette castings either.
I realize the rest of the comments in this thread are related to Olds, but Chevy and Pontiac both used Julian dates (day, month, & year not necessarily in that order) in heads, blocks, intakes, exhaust manifolds and other parts not sure about Buick though.
67 GTO HO block (K 19 6) November 19 1966
68 427 BBC Service replacement block (H 19 7) August 19 1967
Back to the discussion about olds Engines. Here are some photos of the castings on the motor out of my Toro. I thought the "68" in the photo below referenced the casting year of the block. Second photo shows mold number 1 and casting day 30. The car has a Feb 68 build date on the trim tag. Does the 68 on the back of the block reference the casting year, something else, or is it just considered a random number?
Last edited by Loaded68W34; Feb 25, 2022 at 08:46 PM.
Back to the discussion about olds Engines. Here are some photos of the castings on the motor out of my Toro. I thought the "68" in the photo below referenced the casting year of the block. Second photo shows mold number 1 and casting day 30. The car has a Feb 68 build date on the trim tag. Does the 68 on the back of the block reference the casting year, something else, or is it just considered a random number?
All 455 blocks I've owned have that "68" on the back. And don't get me started on the "F-number" relationship to nickel content myth.
On service replacement parts, please remember that automotive manufacturing is a chain of mechanical processes. There is a condition typically called "full" when you cannot make any more parts because your next line, or the trucks you load to, are not moving due to weather, manpower, parts issue from somebody else, or mechanical failure. What many component lines do is make service replacement parts at that time until that method is also full, then, they too, finally stop. I also don't put much faith in making rejected parts into service replacement parts as the ability to make a part work by the line is very high, and something would be unserviceable by the time it was rejected by the line. So, I would think that service replacement parts are made sporadically during the production run, then stopped at retooling and after a set quota have been made.
On service replacement parts, please remember that automotive manufacturing is a chain of mechanical processes. There is a condition typically called "full" when you cannot make any more parts because your next line, or the trucks you load to, are not moving due to weather, manpower, parts issue from somebody else, or mechanical failure. What many component lines do is make service replacement parts at that time until that method is also full, then, they too, finally stop. I also don't put much faith in making rejected parts into service replacement parts as the ability to make a part work by the line is very high, and something would be unserviceable by the time it was rejected by the line. So, I would think that service replacement parts are made sporadically during the production run, then stopped at retooling and after a set quota have been made.
^^^THIS! A little common sense. If Olds had the desire and manufacturing capability to keep producing parts for long out-of-production cars, why did they supersede part numbers within a few years of the production date? Why are "J" heads listed as replacements for A, B, C, and E head applications in later parts books? Heck, with all that excess production capability, why didn't they just keep casting the old ones? Because it made no economic or business sense. Once again, GM was and is in the business of selling new cars. The parts network was only to support dealer repairs and warranty work.
The original car in question is back up for sale on Bring a Trailer. Buyer backed out from the deal that he agreed to and has been banned from that auction site for life. Guess wifey wasn’t too privy on him spending $80k on a car.
Last edited by Bigmikey65; Mar 5, 2022 at 05:19 PM.
The original car in question is back up for sale on Bring a Trailer. Buyer backed out from the deal that he agreed to and has been banned from that auction site for life. Guess wifey was too privy on him spending $80k on a car.
I would never and will never buy a high dollar car without every single step documented. Never. Maybe I am in the minority here with that opinion but watching people pay stupid money and just not caring ruins the hobby.
So the “build date” on this car is 11/26/69 ? (Build Order Card shows N/26 - I’m assuming that indicates November 26th). And the Protect-O-Plate shows a date of 04/09/70. Was the Protect-O-Plate usually issued to the customer on the day that the new owner took delivery of their new car ? What would be the possible reasons for the lapse in time ? Maybe this particular car was ordered by an Olds dealer ?
Last edited by Bigmikey65; Mar 6, 2022 at 08:22 AM.
