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Are these good heads?? Supposedly 1.94 fuelers......

Discussion in 'The Garage' started by y5mgisi, Nov 12, 2004.

  1. y5mgisi

    y5mgisi 1 ton status

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    The guy i got them from said they were 1.94 fuelers and they were in good shape so i picked em up. Any who the numbers are 8998993 and it has GM38 and the shape on the front of the head looks like this
    [​IMG]
    So are these actually good heads or did i get screwed? /forums/images/graemlins/ears.gif
     
  2. sled_dog

    sled_dog 1 ton status

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    think you read the numbers wrong. there is no 8998993 as far as I can find, there however IS a 3998993 and they are [ QUOTE ]
    3998993....72-73...307/350......75cc chambers


    [/ QUOTE ] Sounds like your basic heads to me, probably not junk but I think you got screwed as far as buying what you thought you were getting.
     
  3. Thunder

    Thunder 3/4 ton status

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    Definatly not fuelie heads. All fulie heads have a double hump casting.Id numbers end in the following 3 digits 291, 461, 461X, 462 for the large hump(Early) heads.186, 492 small hump later model heads.

    Look like plain old early 70s and up large 76cc chamber 350 heads to me. They can have 1.94/1.50 valves. You can also find them with 2.02s
     
  4. Rolled

    Rolled 1/2 ton status

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    I have two books that say different things about those heads.

    Book 1
    3998993 = 1968-1976 350 1.71/1.5 truck

    Book 2
    3998993 = 1971 to present 350/400 1.94/1.5
     
  5. beater_k20

    beater_k20 Banned

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    they make good doorstops.
     
  6. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

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    I can tell you those heads are "hecho in mexico" it should say that somewhere on them around the valve spring area. They are nothing special, just 1.94"/1.5" 76cc chambers but early thick casting heads. These were commonly used on GM's target master engines made in mexico.
     

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