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Vehicle Info NeededUNITED ENGINE MACHINEPART NUMBER: 648-KB203.030
Chevy 454ci Hypereutectic Pistons Solid Dome Top .133"
$46510
Ships on 09/04/2026
Lowest Price GuaranteeChevy 454ciDome Top Pistons
- Chevy 454ci Hypereutectic Pistons
- Solid Dome Top .133''
- 4.280'' Bore (+.030'')
- Use w/6.135'' Connecting Rod & 4.000'' Crank Stroke
- Comp. Ratio: 11.0/96.5cc; 10.2/105cc; 9.9/108cc; 9.1/119cc
- 8/pkg
Technical Specs: - Alloy: Hypereutectic 390
- Bore: 4.280'
- Crankshaft Stroke: 4.000'
- Connecting Rod Length: 6.135'
- Deck Height: 9.800'
- Compression Height: 1.645'
- Pin Size: 0.990'
- Pin Location: Centered
- Solid Dome Top: .133' 12cc IV (Closed Chamber Head)
- Intake Valve Relief: 0.266' Depth / 2.310' Diameter
- Exhaust Valve Relief: N/A
- Top Landing Height: 0.308'
- Ring Grooves: 5/64' Top; 5/64' Middle; 3/16' Bottom
- Gram Weight: 710/158
- Compression Ratio: 11.0:1 w/96.5cc Heads; 10.2:1 w/105cc Heads; 9.9:1 w/108cc; 9.1:1 w/119cc Heads
Part TypePiston
BrandUNITED ENGINE MACHINE
Package Height3.9
Package Width9.3
Package Length18.1
Weight16.44 PG
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part NumberKB203.030
Package Qty1
Package TypeEA
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