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United Engine Machine KB237.040-1

Chrysler 440ci Hypereutectic Pistons Flat Top

United Engine Machine KB237.040-1
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Product images may differ from actual product appearance.

648-KB237.040-1

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Estimated to ship directly from the manufacturer on 05/23/18
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United Engine Machine KB237.040-1 Chrysler 440ci Hypereutectic Pistons Flat Top $75.99
Chrysler 440ci Single 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
  • 1/pkg

  • United Engine Machine KB237.040-1 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:
    KB237.040-1

    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