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    Author Topic: 1971 Challenger engine and trans numbers  (Read 1224 times)

    Offline Mike70

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    • Future Challenger Pilot
    1971 Challenger engine and trans numbers
    « on: August 08, 2006 - 07:09:23 AM »
    Can anyone shed some light on what these numbers mean (if anything). These are on a 1971 Challenger 318 auto. I was hoping it was "numbers matching", but these stampings don't match the VIN.

    VIN - JH23G1B217439
    Transmission - 7G2423  4
    Engine - 4M318  11280382

    What does the 4M and 7G stand for? Any websites that would help?

    Thanks, Mike
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    Mike
    70 Challenger RT/SE
    (If I ever get it done - wait, I guess I have to start first).


    Offline Chryco Psycho

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    • 70 Challenger R/T SE 70 tube Chassis Cuda now sold
    Re: 1971 Challenger engine and trans numbers
    « Reply #1 on: August 08, 2006 - 09:25:01 AM »
    7g & 4 m are the year & plant 7G would be a 77 block from St Louis plant &  4m would be a 74 trans , I don`t have a listing for the M plant , probably opened after 70
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    Challenger - You`ll wish You Hadn`t

    Offline Mike70

    • Jr. Member
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    • Posts: 199
    • Future Challenger Pilot
    Re: 1971 Challenger engine and trans numbers
    « Reply #2 on: August 08, 2006 - 01:26:39 PM »
    Thanks for the info!
    Logged
    Mike
    70 Challenger RT/SE
    (If I ever get it done - wait, I guess I have to start first).
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