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KB Performance Pistons KB199.040

Ford 427ci Hypereutectic Pistons D-Cup 20cc

KB Performance Pistons KB199.040


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Estimated ship date 07/12/17 if Ordered Today
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KB Performance Pistons KB199.040 Ford 427ci Hypereutectic Pistons D-Cup 20cc $457.99
Ford 427ci Hypereutectic Pistons
  • D-Cup 20cc
  • 4.274" Bore (+.040")
  • Use w/6.490'' Connecting Rod & 3.780'' Crank Stroke
  • Comp. Ratio: 10.8/61cc; 9.9/70cc; 9.6/74cc
  • 8/pkg

  • KB Performance Pistons KB199.040 Details

    Ford 427ci

  • D-Cup Pistons
  • Note: Ring Size - 5/64, 5/64, 3/16


    Manufacturer's Part Number:

    100% CNC Machined Pistons

    New high silicon alloys and diamond tooling have give Keith Black designers the material and equipment for performance breakthroughs in engine design. KB piston are 100% CNC machined and T-6 heat treated from 16%-18% silcon Hypereutectic alloy. Features include drilled oil returns and pin oil supply, .072'' spiral wound retaining ring, 100% diamond turned, compensated high strength ring lands, high top ring location, 360° pressure pin oiling, diamond honed pin hole and lightweight rigid rib skirt design.


    • 390 Hypereutectic alloy with 16% Silicon
    • Fully machined crowns and valve reliefs
    • Drilled oil drain backs
    • Full floating wrist pins
    • Triple wound spiral locks
    • Reflective alloy allows 2% power increase
    • Quench dome technology minimizes deterioration
    • Zero deck quench designs
    • Sold in Sets (except when noted as 1 piston per package)

      Click here for reference guide to piston top designs

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