318 Poly rebuild....

Engine, Transmission & Driveline

  1. Lowapproach

    Lowapproach New Member

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    I’m warming to the idea of being weird and building my poly.
    To stroke or not to stroke?
    How much over?
    FiTech or carb?
    Any ideas?
    Thanks
     
  2. Big_John

    Big_John Illegitimi non carborundum FCBO Gold Member

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  3. Lowapproach

    Lowapproach New Member

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  4. Lefty71

    Lefty71 Active Member

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    Looks like you only need your poly heads (and probably some spares) for that build! They pretty much threw everything else away in favor of parts from other engines, or total custom stuff.
     
  5. ofb383

    ofb383 Member

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    I was considering FiTech, but there's a lot of negative comments about the unit and videos on youtube, the ecu for the set up is in the throttle body and heat and vibration seem to upset them
     
  6. Ripinator

    Ripinator Senior Member

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    I would be inclined to go in this direction. . .

    3-20-14-Dual-Quad-Poly-Stroker-(4).jpg
     
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  7. Lowapproach

    Lowapproach New Member

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    Not sure I want to know what that intake and build cost! Sure is sexy though!
     
  8. Ripinator

    Ripinator Senior Member

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    No big deal. Thirty over bore, two four-barrel carbs, a hotter cam and maybe higher compression pistons - but maybe not.
     
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  9. abloch

    abloch Member

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  10. Lowapproach

    Lowapproach New Member

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    Which carbs are you running on this?
     
  11. twostick

    twostick Senior Member

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    The only thing special you need to stroke a Poly out to big block size are the pistons because of where the valve reliefs are. The crank and rods are LA peices available almost at Walmart so other than the up charge for pistons, no more expensive to build than an LA stroker.

    Stroke up to 4.25 is readily available and the blocks can usually take a .100" overbore but I would sonic check to be sure in case of core shift.

    Kevin
     
  12. Ripinator

    Ripinator Senior Member

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    I don't know. Generic Edelbrock?