Engine vin

Discussion in 'VIN, Trim Tag & Drivetrain Decoding' started by Dthirteen, Nov 20, 2019.

  1. Dthirteen

    Dthirteen New Member

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    Hello. Hope all is well. I have a chevy engine block with 3970010 on drivers side rear of the block and 155105T1T on the front passenger side below the head just behind where the alternator mounts. Is this a 350SB and what year?? Have not been able to figure out what 155105T1T decodes too??
     
  2. Gary S

    Gary S Administrator Lifetime Gold Member

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    The 3970010 block is a 4" bore block. It was used on 327, 350, and 302 engines from 1969-1979. The 327 and 302 engines were one year only in 1969, so it pretty much can be assumed to be a 350 engine.
    Like you, I can't figure out what the 155105T1T is becuase it doesn't seem to match up with codes on any available list.
     
  3. 2ndGenCrazy

    2ndGenCrazy Veteran Member

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    Take an image and post it. Numbers don't make sense.
     

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