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Engine decoding help with poll

Discussion in 'The Garage' started by GotLabs, Dec 14, 2005.

?

Did your rig have the original motor when you got it?

  1. Yes, and it still does

    9 vote(s)
    52.9%
  2. Yes, and I scrapped it for a new motor anyway

    1 vote(s)
    5.9%
  3. I dont care about that kind of pansy stuff

    1 vote(s)
    5.9%
  4. Sometimes I touch myself when I think about Chevy motors

    6 vote(s)
    35.3%
  1. GotLabs

    GotLabs 1/2 ton status GMOTM Winner

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    I have used the decoders, it appears that my motor may be indigenous to my Jimmy. Is there anyway to know for sure? Is this a good block to rebuild (I read one post on here that it was a "good" casting number)? Here is the info that I have already. Here are the numbers on the front right part of the motor v0726TFH. thanks for the help.
    casting #
    3970010 68 - 79 350 & 327 145-375 2&4-Bolt mains/Truck/Hi Perf
    3970010....302.....69....4...Z-28 Camaro
    3970010....327.....69....2...Trucks and industrial
    3970010....350...69-80...2 or 4

    VIN info
    VIN decoding of TKE182S504213
    Model year: 1972
    Made by: GMC
    Drive: 4WD
    Engine: 1972 V8
    Series: 1/2 ton (10/15)
    Body: Blazer/Jimmy
    Plant: St Louis
    Serial #: 504213

     
    Last edited: Dec 14, 2005
  2. pauly383

    pauly383 Daddy383 Staff Member Moderator

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    You need to get the numbers off the front pad of the motor . These should be the application the motor is for , and should have your vin partially on it .
     
  3. readymix

    readymix 3/4 ton status

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    Exactly what Paul said. On the front of the block you will have the suffix code and a partial vin. That is unless the block has been decked.
    It will be even with the deck, right where the head gasket goes, on the front pas side. On my 87, it is hard to see as the alternator is kinda in the way.
     
  4. mofugly13

    mofugly13 1 ton bucket of rust Premium Member

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    The motor that came with my K5 had the same casting number, it was a 4 bolt 327. When I spun a rod bearing I put in a fresh goodwrench 350. I would have rebuilt the 327 as it was a "high nickle" block. But it was already bored .o60 over, so it became an anchor. I like having the new 350, as I dont have to worry about how long my engine will last, but the cam in the 327 definitely gave it more oomph than my current motor.
     
  5. diesel4me

    diesel4me 1 ton status Premium Member

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    He listed the right codes!.."TFH" is the engine code..I'd look it up for him if I were in my shop where my books are..but its 8 degrees out there,and also 1.30 AM!...maybe tomorrow I can post back with the info..it sounds about right for that year (72)--might be a bit later than that,like 73-75??..I'll see if TFH is listed in my books...
     
  6. GotLabs

    GotLabs 1/2 ton status GMOTM Winner

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    Thanks, I found a lot of info searching around. But nothing specific, Im almost positive now though that it is the original motor.
     
  7. dyeager535

    dyeager535 1 ton status Premium Member

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  8. GotLabs

    GotLabs 1/2 ton status GMOTM Winner

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    I used that website already. I found another one (after searching the web for hours yesterday) that said it was flint mi, july 26th 1971, 175hp k10. So, unless someone can prove me wrong, I will believe it is the original motor.:D Thanks for the help...........Did I mention that its the original motor
     

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