Engine casting date vs engine build date vs car build date

Discussion in 'Engine Topic' started by Vettenick, Aug 17, 2021.

  1. Vettenick

    Vettenick Vettenick

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    Just trying to establish a plan. How close to the car build date should the casting date and the engine stamp date be, as well as how many days after the block is cast, should the engine build date be? I'm hearing like 2-3 days. Is that true?
     
  2. 70lt1z28

    70lt1z28 Veteran Member Gold Member

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    I've heard everything from the SAME day (that casting was probably still hot IMO) to about a month for the casting date to engine assembly date. In my case the block was cast on march 18 and assembled on April 6th. There are always exceptions to every rule. 2-3 days is pretty tight I think to be considered the "norm". It also depends I think on when in the cars model year. At start of production for a new model year, the engines can pre-date the vehicle assembly by a greater margin. Strikes and other work stoppages can also effect it. Special engine options too can have an effect. The 1970 L78's I am told were cast much earlier than the cars build date.
     
  3. Vettenick

    Vettenick Vettenick

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    Thanks! So, for example cast date 4/21/1970. assembly date 4/28/1970 car build date 2nd week of May. Does that work?
     
  4. 70lt1z28

    70lt1z28 Veteran Member Gold Member

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    I'm not an expert on this, but that sounds very reasonable to me. The cast-to-assembly is good. Waiting for input from others on this. Again, for a base motor car the span I believe would be much closer as many of these were being assembled daily. For more rare options (Z28, L34, L78) the numbers can vary much more. Van Nuys probably had a greater span by a few days also. The engines were all assembled at either Tonawanda New York or Flint Michigan and railroaded to the assembly plants.
     
  5. Vettenick

    Vettenick Vettenick

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    Thanks! I just wanted to make sure what I thought wasn't unrealistic.
     
  6. 1980RS

    1980RS Veteran Member

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    My brothers '69 Camaro's driveline was months different than his build date, but it is a numbers matching car.
     
  7. The Champ

    The Champ Veteran Member

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    After trailering our '72 Camaro home from MO, I found the build sheet and it was built the 4th week of February. When we pulled the engine to rebuild it, I learned that the block was cast on Valentine's Day.

    It's a car I bought my wife for her birthday in 2000 and we started dating back in the last half of February in 1972.
     
  8. 1970_Z28_503

    1970_Z28_503 Veteran Member

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    My O5D Z28 has engine casting date of D280 (April 28, 1970).
     
  9. Vettenick

    Vettenick Vettenick

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    Thanks for the info guys!
     
  10. 2ndGenCrazy

    2ndGenCrazy Veteran Member

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    1970 Norwood 07C Z28
    block cast date F 27 0, June 27th
    block stamp V0706 CTC July 6th
    both cyl heads F 28 0, June 28th
    rear axle 0705 COZ E 1 July 5th
    trans CW 528 (163rd day of 1970, Friday June 12th)
    subframe stamp 7 770N1 July 7th 1970
    alternator 0D2, April 2nd
    brake booster stamp 183, Thurs. July 2nd
    master cyl cast date same as brake booster 183, stamped "EB"
    fuel tank 22 70, 22nd week of 1970
    starter G 14 0, July 14th (very close to cowl tag 3rd week)
    all seat belts 24 A 70, 24th week of 1970
    steering box stamp 173 0, Monday June 22nd
    voltage regulator F 0, June 1970
    outside mirror glass 2 DIM 0, Feb 1970?
    cooling fan D 70, April 1970
    left quarter panel stamp H 26 Hamilton stamping plant 26th week
    right quarter panel stamp H 27 Hamilton stamping plant 27th week
    intake manifold May 1970
    Heater blower motor 5 26, May 26th
    3.73 ring gear 5 70, May 1970
    posi unit D 3 A, April 3rd, A shift ???
    rear axle cast date D 14 0, Tuesday April 14th
    fan clutch ink stamp A20A Eaton CV
    rocker panel stamp T26 Ternstedt? 26th week
    wiper motor tag 142 0 4 A, 142nd day 1970, Friday May 22nd.
    ink stamp on instrument cluster printed circuit 052870, Thursday May 28th, 1970
    tach ink stamp 041770, Friday April 17th, 1970
    tag on instrument cluster case July 8 70 009
    radiator tag 3031201 0
    cardboard tag on rear seat back "Packed 7-3", Friday July 3rd
    I'm tired of typing now.....
     

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