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Jeep 4.6L Hypereutectic Pistons 27.5cc Dish
Product Discontinued
UNITED ENGINE MACHINEPART NUMBER: 648-KB421.030

Jeep 4.6L Hypereutectic Pistons 27.5cc Dish

Currently Unavailable

This product is no longer available. Please call customer service for assistance at 1-800-345-4545.

Jeep
  • 4.6 Stroker
      • Jeep 4.6L Hypereutectic Pistons
    • 27.5cc Dish
    • .030" Bore
    • Use w/6.123'' Connecting Rod & 3.895'' Crank Stroke
    • Comp. Ratio: 9.6/71cc; 8.4/87cc; 8.1/96cc; 7.8/111cc
    • 6/pkg

    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, 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.

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    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)
    Part TypePiston
    Product LineUEM Pistons KB Signature Series Hypereutectic Jeep Pistons
    BrandUNITED ENGINE MACHINE
    Package Height3.8
    Package Width9.2
    Package Length13.8
    Weight7.54 PG
    Part CategoryPerformance Parts
    Vendor Part NumberKB421.030
    Package Qty1
    Package TypeEA
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    Some parts are not legal for use in California or other states with similar laws / regulations
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