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Pontiac 400ci Hypereutectic Pistons Solid Dome 10cc +030
InfoVehicle Info Needed
UNITED ENGINE MACHINEPART NUMBER: 648-KB422.030

Pontiac 400ci Hypereutectic Pistons Solid Dome 10cc +030

$50216
ShippingShips on 09/08/2026
Lowest PriceLowest Price Guarantee

Pontiac 400ci
  • Solid Dome
      • Pontiac 400ci Hypereutectic Pistons
    • Solid Dome 10cc
    • 4.150" Bore (+.030'')
    • Use w/6.630'' Connecting Rod & 3.750'' Crank Stroke
    • Comp. Ratio: 9.4:1/100cc
    • 8/pkg

      Note: Designed to work with 1967 and later 14-degree heads. Piston is .025" below a 10.250" deck. Check small end of rod to piston before assembly / .045" clearance per side minimum.

      Technical Specs:
    • Alloy: Hypereutectic 390 Alloy
    • Bore: 4.150'
    • Crankshaft Stroke: 3.750'
    • Connecting Rod Length: 6.630'
    • Deck Height: 10.250'
    • Compression Height: 1.710'
    • Pin Size: 0.980' x 3.000'
    • Pin Location: Centered
    • Solid Dome Top: 10.0cc 2 Valve Reliefs
    • Intake Valve Relief: 0.239" Depth / 2.140" Diameter
    • Exhaust Valve Relief: 0.239" Depth / 2.140" Diameter
    • Top Landing Height: 0.300'
    • Ring Grooves: 5/64' Top; 5/64' Middle; 3/16' Bottom
    • Gram Weight: 582/163
    • Compression Ratio: 9.4:1 w/100cc Combustion Chamber Heads
    Part TypePiston
    BrandUNITED ENGINE MACHINE
    Package Height4.9
    Package Width9.5
    Package Length18.9
    Weight14.65 PG
    Part CategoryPerformance Parts
    Part FitmentSemi Universal
    Vendor Part NumberKB422.030
    Package Qty1
    Package TypeEA
    No Questions
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