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ICON Premium Forged Big Block Chrysler 440 RB 493 ci. Pistons Step Dish Top 4.350 in. Bore
InfoVehicle Info Needed
UNITED ENGINE MACHINEPART NUMBER: 648-IC840.030

ICON Premium Forged Big Block Chrysler 440 RB 493 ci. Pistons Step Dish Top 4.350 in. Bore

$77319
ShippingShips on 09/17/2026
Lowest PriceLowest Price Guarantee

Chrysler RB 493 ci. (440 Block)
  • Step Dish Top Pistons
  • Use w/6.768 in. Connecting Rods & 4.150 in. Crank Stroke
    • ICON Premium Forged Big Block Chrysler 440 RB 493 ci. Pistons
  • Bore: 4.350 in. (+.030 in.)
  • Head Type: Step Dish (+23.7 cc) w/2 Valve Reliefs
  • Comp. Height: 1.869 in.
  • Rod: 6.768 in.
  • Stroke: 4.150 in.
  • Rings: 1/16, 1/16, 3/16 in.
  • Set of 8

    ICON Premium Forged Big Block Chrysler 440 RB 493 ci. Pistons Specifications:

    • Engine Family: Mopar 440 Big Block RB
    • Engine Size: 493 ci.
    • Exhaust Valve Depth/Diameter: .199/1.880 in.
    • Intake Valve Depth/Diameter: .215/2.300 in.
    • Piston Material: Forged 2618 Alloy
    • Part TypePiston
    BrandUNITED ENGINE MACHINE
    Package Height5.1
    Package Width10.6
    Package Length21.0
    Weight16.6 PG
    Part CategoryPerformance Parts
    Piston Ring Thickness (In.)1/16 x 1/16 x 3/16
    Wrist Pin StyleFull Floating
    QuantitySet of 8
    Piston MaterialForged
    Pin Diameter0.99 in (25.1 mm)
    Part FitmentSemi Universal
    Piston StyleDish, with two valve reliefs
    Bore4.32 in (109.728 mm)
    Vendor Part NumberIC840.030
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews

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