Engine Identification

Discussion in 'VIN, Trim Tag & Drivetrain Decoding' started by K1ng0011, Aug 6, 2019.

  1. K1ng0011

    K1ng0011 Veteran Member

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    I wanted to verify if this was correct based on what I have read. This engine is a sbc 400 engine. I just wanted to get an idea of what it came out of and the year it was made. The two things I am unsure of really are the suffix code and the partial vin. The suffix code says this is an 82 350 engine which it is not. The second part of it is my understanding is that all partial vin codes after 1968 were suppose to start with a 1. Sbc 400 engines to my understanding were made from 1970-1980 and seems like something is not adding up.

    Reference #1: https://www.chevellestuff.net/qd/engine_stamp_numbers.htm
    Reference #2: http://www.gregwapling.com/hotrod/monaro-shrine/chev-small-block-v8-engines.html#VINCODE

    Engine Code: F0411TTA
    Partial Vin: C84152887
    Back of Block Vin: 3951509

    Casting Number Back of Block
    http://www.castingnumbers.info/site/search/3951509

    Engine Code
    F/Plant: Flint (Motor)
    04/Month:April
    11/Day: 11th
    TTA/Suffix Code: 1982 350 con, fd, van, bus M LT9 160 4 C-20 to 3500


    Partial Vin
    C/Month: March
    8/Day: 8th
    4/Year: 1974



    Engine Identification Picture #2.jpg SBC Engine Identification Picture #1.jpg
     
  2. Gary S

    Gary S Administrator Lifetime Gold Member

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    The 3951509 casting number definitely IDs the block as a 400. The TTA code says it is from some truck application. The rest of the partial VIN suggests to me that it is a 1974 engine, but I don't have a full listing to tell me what the second digit (8) means. I wonder if it might indicate a GMC or other application, but not Chevy.
     
  3. jbloake

    jbloake Veteran Member

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    Engine stamp pad doesn’t look to me what was used in 74 There should be a date on rear of block near the casting number
     
  4. 70lt1z28

    70lt1z28 Veteran Member Gold Member

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    Th Lime Book identifies it as a truck application, either a 1985 305 or a 1980 350. The small pad tends to confirm it is a late 70's/early 80's application. Probably a 1984 casting
     
  5. Gary S

    Gary S Administrator Lifetime Gold Member

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    There doesn't seem to be any source that lists all the codes GM used to ID their engines. It can't be a 305 or a 350. The casting number of the block definitely IDs it as a 400. There is no way to make a 305 or a 350 from a 400 block.
    Apparently the TTA code was used on more applications than listed in the sources we have today.
     
  6. K1ng0011

    K1ng0011 Veteran Member

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    So I took a look at the back of the block for any other numbers. The only things I found was the time of day stamp of when it was made and a number on the other side of the bellhousing which is not in good condition but looks like a 3248 or 8248. I can see the suffix code not including all engines. However what about the partial vin? I thought they were suppose to start with a 1. Also I do live in washington state. It is possible that somehow this engine may have made its way across the border from canada?

    Engine Identification Picture #4.jpg Engine Identification Picture #3.jpg
     
  7. jbloake

    jbloake Veteran Member

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    The 8248 looks like B248 Feb 24 1978
     
  8. K1ng0011

    K1ng0011 Veteran Member

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    The B248 what is that called if I ever have to look it up on a future engine? There is the casting number at the back of the block, the partial vin, and the engine code but I was not aware I needed to look for this.
     
  9. jbloake

    jbloake Veteran Member

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    The B248 would be the casting date. That’s when the block was been made. All the stamping were put on later during assembly You know it started as a 400 block Like Gary says ,we don’t have all the info GM used .
     
  10. K1ng0011

    K1ng0011 Veteran Member

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    Thanks for everyone's help. I think this mystery is solved. :D
     

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