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United Engine Machine KB199.040

Ford 427ci Hypereutectic Pistons D-Cup 20cc

United Engine Machine KB199.040


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Estimated to ship directly from the manufacturer on 04/23/18
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United Engine Machine 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

  • United Engine Machine 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

    Are all P/N KB 199 pistons compatible? I have an engine with 7 pistons with what I believe is a date code 04 and 1 piston with a date code of 12. The 1 piston date code 12 has valve reliefs, the other ones with a date code 04 do not have that.

    Asked by: clopie
    Yes, all of the KB199's would be the same.
    Answered by: Jon Jegs Tech
    Date published: 2018-02-03
    • y_2018, m_4, d_21, h_2CST
    • bvseo_bulk, prod_bvqa, vn_bulk_2.0.8
    • cp_1, bvpage1
    • co_hasquestionsanswers, tq_1
    • loc_en_US, sid_10001_10001_1484802, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_jegs
    Some parts are not legal for use in California or other states with similar laws / regulations