max stroke in short deck

Discussion in 'PSI Superchargers Tech Questions' started by mark6052, Jan 26, 2011.

  1. mark6052

    mark6052 Member

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    I have friend who bought a kb hemi block, its a short deck. The crank in it is broke so he needs to get a new one. He will be buying rods and pistons as well so time to change stroke. What is the max he can go? 4.150? I assume he cant use a 4.5" I have no experience with these. He will run it blown, wants to run 6.50s in an altered. Thanks for the input.
     
    #1
    mark6052, Jan 26, 2011
  2. tc1216

    tc1216 Member

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    KB stage 10 blocks 4.500 stroke no problems at all.
     
    #2
    tc1216, Jan 29, 2011
  3. blown375

    blown375 New Member

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    Why do you need all that stroke to run 6.50s ?
    I know of TAD cars that run 5.30s with a 3.60 stroke.
     
    #3
    blown375, Jan 29, 2011
  4. john348

    john348 Top Alcohol

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    not sure you can swing that much in a short deck
    I dont think you can get a rod short ennough to keep the piston from hitting the crank
     
    #4
    john348, Jan 29, 2011
  5. Don Onimus

    Don Onimus New Member

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    crank

    Piston speed/ swept volume / side loading/ unhappy rings. Too much bottom end / etc. Don
     
    #5
    Don Onimus, Jan 30, 2011
  6. tc1216

    tc1216 Member

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    The standard Newberry 526 was short deck, 4.500 stroke, +.270 rods. Pistons never hit the crank.
     
    #6
    tc1216, Jan 30, 2011
  7. john348

    john348 Top Alcohol

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    I run a newberry deal it is a std deck
     
    #7
    john348, Jan 30, 2011
  8. Overthehill

    Overthehill New Member

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    hitting the rods

    no sure if i am understanding the question or not,but i would be more concerned about the rods hitting the cam in a -.500 deck,standard cam location with a big arm. thats my nickles worth.:cool:
     
    #8
    Overthehill, Jan 30, 2011

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