79 Z28 casting numbers

Discussion in '1978 - 1981 Specific' started by Kylejohn695, Dec 9, 2020.

  1. COPO

    COPO Veteran Member Lifetime Gold Member

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    3890462....1966-67
    8315A10D-6544-43D9-90E8-75D11149C2EF.jpeg
     
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  2. Chevyforever

    Chevyforever Veteran Member

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    DRF 79 Camaro 170hp block
     
  3. Camaromurph

    Camaromurph Veteran Member

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    DRF is okay for 79 350 with manual trans according to this site. There should be a partial vin stamped in the same place that will tell you if it is original to the car.
     
  4. Kylejohn695

    Kylejohn695 New Member

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    Thanks for all the info guys I really appreciate the help!
     
  5. 2ndOwner78

    2ndOwner78 Member

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    So with that it looks like you may have the block that came in the car from the factory (need to find the VIN stamp on the block to confirm that) that has had better heads installed at some point.

    This info came right from the NastyZ28 engine code info. Flint, MI built engine on October 25th.

    - DRF = 1979 350 auto trans. L LM1 170 4 Camaro
     
  6. 79ZED

    79ZED Veteran Member

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    DRF was also used behind ST-10 manual trans '79 Z28's and perhaps others.
     
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  7. Kylejohn695

    Kylejohn695 New Member

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    I just ripped the Borg-Warner super t 10 (with the three cross hatch lines on the input shaft) out of mine the brass bushing was installed incorrectly and was making some horrendous noise.
     
  8. Kylejohn695

    Kylejohn695 New Member

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    When you’re referring to the “L LM1” what does that refer to?
     
  9. 2ndOwner78

    2ndOwner78 Member

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  10. COPO

    COPO Veteran Member Lifetime Gold Member

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    LM1 was the designation for the 350.
     

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