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    4-3/8" Bore Cylinder Only Sets for X-Wedge® Engines - Polished

    Item #: 910-0003
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    $753.95
    PowerTerms

    Increase the displacement of your X-Wedge engine with these bolt-on cylinder and piston kits. Increase the displacement of your X-Wedge engine with these bolt-on cylinder and piston kits. A 1/8" bore increase will take an X121 to X128, and a 1/4" bore increase will take an X117 to X132! No changes to the crankcases or flywheels are required. No changes to the crankcases or flywheels are required. Bolt-on Proven Performance® from S&S!

     

    FITMENT

    • S&S X-Wedge® engines

    FEATURES AND BENEFITS

    • Bolt-on performance
    • Increase displacement without crankcase modifications
    • Fits all X-Wedge engines

    OPTIONS

    • Silver powdercoat, wrinkle black powdercoat or polished finish
    x-wedge poston/cylinder upgrade dyno
    This dyno chart shows the performance enhancements from increasing displacement. While peak horsepower is not greatly affected, overall torque drastically increases – 140 ft./lb. at 2500 rpm! Both engines are configured with S&S X569 cams, S&S 58mm throttle body, S&S tuned runner intake and custom made 2:1 header system with a performance muffler.

     

    Replacement 4 3/8" Bore Cylinders & Pistons
    for S&S® X-Wedge® Engines
      X128 X132
    Displacement 128" 132"
    Stroke 4.25" 4.375"
    Bore 4.375" 4.375"
    Cylinder Length 4.645" 4.645"
    Compression Ratio 10:1 10.3:1
    Cylinder Silver Powdercoat 910-0002
    Cylinder Black Wrinkle Powdercoat 910-0001
    Cylinder Full Polished 910-0003
    Replacement  Pistons Forged (for X128) Forged (for X132)
    Standard Piston 920-0003 920-0002
    +.010 920-0006 920-0004
    Cylinder includes one cylinder only. All piston part numbers are for one piston only and include rings, wristpin, and clips. 

     

    Replacement Parts for X128 & X132 Pistons
    Standard Moly Faced Rings 94-4285X
    +.010 Moly Faced Rings 94-4286X
    Wristpin 94-9277
    Keeper 106-0004

     

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    Cylinders are honed and ready for assembly. Cylinder sets include front and rear cylinders. Includes head and base gaskets. Pistons are sold seperately. See chart below.