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United Engine Machine Chrysler 440ci Hypereutectic Pistons Flat Top

United Engine Machine KB237.040
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648-KB237.040

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United Engine Machine Chrysler 440ci Hypereutectic Pistons Flat Top $459.99
Chrysler 440ci Hypereutectic Pistons
  • Flat Top
  • 4.360'' Bore (+.040'')
  • Use w/6.768'' Connecting Rod & 3.750'' Crank Stroke
  • Comp. Ratio: 11.5/72cc; 10.6/80cc; 10.2/85cc; 9.7/90cc
  • 8/pkg

  • United Engine Machine KB237.040 Details

    Chrysler 440ci

  • Flat Top Pistons
  • Notes:
  • Zero deck clearance Technical Specs:
  • Alloy: Hypereutectic 390
  • Bore: 4.360''
  • Crankshaft Stroke: 3.750''
  • Connecting Rod Length: 6.768''
  • Deck Height: 10.725''
  • Compression Height: 2.067''
  • Pin Size: 1.094''
  • Pin Location: Centered
  • Flat Top: -5cc 2V Relief
  • Intake Valve Relief: 0.264'' Depth / 2.360'' Diameter
  • Exhaust Valve Relief: 0.264'' Depth / 2.360'' Diameter
  • Top Landing Height: 0.275''
  • Ring Grooves: 5/64'' Top; 5/64'' Middle; 3/16'' Bottom
  • Gram Weight: 770/190
  • Compression Ratio: 11.5:1 w/72cc Heads; 10.6:1 w/80cc Heads; 10.2:1 w/85cc Heads; 9.7:1 w/90cc Heads

  • Specifications:

    Manufacturer's Part Number:
    KB237.040

    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.

    Features:

    • 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

    Some parts are not legal for use in California or other states with similar laws / regulations

    Motor Vehicles

    WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.

    Tools:

    WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.

    Electrical Cords

    WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.