Any 70/71/72 Z28 owners? Engine date/stamp and cowl tag info needed.

Discussion in 'Original Drivetrain Topic' started by 7173LT, Dec 15, 2017.

  1. Gary S

    Gary S Administrator Lifetime Gold Member

    Apr 14, 1999
    Bismarck, North Dakota
    Correct. The '71s built before the end of 1970 would have components made in 1970. However, the tranny stamping shows the year model, not the year it was built. So, the P1K27A tranny was built on July 27, 1970 for a 1971 model car.

    In theory, during July, it would be possible to build a P1K27A tranny on the same day as a P0K27A tranny if the 1970 production had not fully stopped by that date and Chevy needed one more tranny to complete the 1970 car. That is theory, not reality. GM was more organized than that and you can bet they completed all parts for one year before starting on the new year so as to accomodate the year to year changes.
  2. 7173LT

    7173LT Member

    Mar 21, 2017
    Ok, I get that..
    Thanks a bunch!
  3. 70lt1z28

    70lt1z28 Veteran Member Gold Member

    Oct 3, 1999
    Beavercreek, Ohio, USA
    To add even a bit more to the number confusion, could there have been a P1K27A built on July 27 of 1971 for a very late July/Early August 1971 model Camaro? Not sure when the exact cutoff for 1971's were but it was close to this time.
  4. twozs

    twozs Veteran Member

    Aug 5, 1999
    hopewell jct ny
    There was a build out on the line where the old model year car was built out . Either a huge gap in the line or completely empty it . This was summer shut down time . This is when all old stock was salavaged or shipped to distribution centers . Some parts were reused for sure but I remember the place was like a ghost town as far as parts bins which were normally stacked to the ceiling everywhere. Date stamped parts that were stamped at the assembly plant were stamped right before install so the build out had already happened and you were in the next year production . The perception is it was not well organized. These assembly plants had been at it for a while and wasn’t just some fort in the woods . I worked in the body shop which was the first to build out . It was weird to see an empty line for as far as you can see . Shutdown length depended on sales , which were usually bad for the model being built out as by then you wanted the new year model . Usually about 2 weeks .
    70 SS/L78 likes this.

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