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HT3.4 Specs??

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  • HT3.4 Specs??

    I am trying to get stock specs for my GM HT3.4 crate motor to maybe play with the CR a little. This is what I have... are any of my numbers wrong??

    Calculator=
    Bore: 3.62"
    Stroke: 3.31"
    Chamber Volume: 53 cc
    Head gasket thickness: 0.035"
    Head gasket bore: 3.65"
    Piston to deck height: 0.064" <------ Back tracked to get
    Piston type: Flat Top
    Dome volume: 0 cc <------ as far as i know there is no dome or dish right??

    ***All of this equals 9:1 CR

    Does all of this look correct for my HT3.4??

  • #2
    There is a dish. Use the stock numbers from the drop down list to get your starting point.
    1993 EXT. CAB, 3.4L V6 TBI, 5spd manual. Sonoma
    1990 4Door, 3.2L V6 TBI, 5spd manual. 4X4. Trooper
    Because... I am, CANADIAN

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    • #3
      Originally posted by GEARS View Post
      I am trying to get stock specs for my GM HT3.4 crate motor to maybe play with the CR a little. This is what I have... are any of my numbers wrong??

      Calculator=
      Bore: 3.62"
      Stroke: 3.31"
      Chamber Volume: 53 cc
      Head gasket thickness: 0.035"
      Head gasket bore: 3.65"
      Piston to deck height: 0.064" <------ Back tracked to get
      Piston type: Flat Top
      Dome volume: 0 cc <------ as far as i know there is no dome or dish right??

      ***All of this equals 9:1 CR

      Does all of this look correct for my HT3.4??
      Some more reference information on the GM HT Crate Engine...


      Comment

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