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. 7173LT

    7173LT Member

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    Mar 21, 2017
    Dang,,,now ya got me wondering.. Ill check and get back with ya when I look at the cowl and the vin. Should know tomorrow or so.
    To everyone that has posted their cowl/casting, and stamp dates, thanks a ton... Keep em coming.
     
  2. 7173LT

    7173LT Member

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    Mar 21, 2017
    Twozs.....
    So if my cowl build date is 70, not 71, does that mean it would have had a `70 cast block not a 71?
    It`s a Los Angeles car not Norwood btw..
    Thanks
     
  3. Smokin'Joe

    Smokin'Joe Veteran Member Lifetime Gold Member

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    I agree with this. - If the original block is long gone it's not going to matter what date you put in there, ( unless you are planning to restamp the block, which is highly frowned upon in the hobby ).

    A much better option would be to find a mid-to-late 1971 CE stamped block, which is the Counter Exchange block and is the replacement that would have been inserted in your car if the original block failed while under warranty. - Most CE blocks used the original heads, intakes, and everything else that was usable when the block gave up.


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  4. 70 SS/L78

    70 SS/L78 Veteran Member Lifetime Gold Member

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    Rockford, MN
    Just check your VIN, then you'll know if it's a very early or late built 71. If it's a early built 71 then you'll need a block made/built in 1970. Anywhere from 1-4 weeks is typical but more than 4 weeks was also common. As mentioned, a CE block is also another option.
     
  5. twozs

    twozs Veteran Member

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    hopewell jct ny
    that was my next question ... LA or Norwood ? but i see its an LA car . it seems by the data base that very few cars were built at LA and the majority were built in early to mid 71 . it also seems that gm built a few thousand cars in late 70 ( 71 cars though ) and stopped production .. this was common as estimated sales governed scheduled production . bit like i said your vin will tell , but it seems that NO 71 cars were made after june .
     
  6. 7173LT

    7173LT Member

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    Mar 21, 2017
    Had a buddy run to my storage..
    vin is 124871L501830.
    Cowl tag is 08E and is stamped `71 in two different places on the cowl tag.
     
  7. McCune

    McCune Veteran Member

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    st.george utah
    1830 Camaro built in 1971
     
  8. Gary S

    Gary S Administrator Lifetime Gold Member

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    That VIN should be one of the last 1971 Camaros built at Van Nuys in August of 1970. On that early a car all casting numbers would be 1970 on engine components.
     
  9. twozs

    twozs Veteran Member

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    hopewell jct ny
    we would knock out about 1000 cars a day at tarrytown ( 480 minutes in 8 hours X 2 shifts and usually we ran over time in increments of 6 minutes ) . plants ran 2 shifts as each plant needed some time for stock relocation and maintenance . LA ran 2 lines at that point and was running about half speed or 30 cars per hour per line with 2 lines though . so 1800 camaros ( not counting the other cars that were run ) in 2 or 3 weeks is right on schedule .
     
  10. 7173LT

    7173LT Member

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    Mar 21, 2017
    TWOZS..
    Sooo, if my cowl tag says 08E for the build date, but is stamped 71 on the cowl tag, what year engine casting am I looking for? close to 70? or 71? McCune says the car was built in 71, Gary says that a 70 engine is what would have been in it. Heres more food for thought.. The original Muncie (with matching vin stamp on it) is stamped with a P1K27A. Tell me if that tranny stamp makes any sense. Long story short, Im searching for a block and heads and going to do a correct restamp and am not going to hunt for a counter exchange block and need to know what belongs. Cast date on the rear if I remember is a 71 also.
    Any help would be appreciated.
     

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