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Vehicle Info NeededUNITED ENGINE MACHINEPART NUMBER: 648-IC9952.030
Chevy 489ci FHR Forged Pistons Solid Dome .202" (Open Chamber Design)
$70473
Ships on 09/09/2026
Lowest Price GuaranteeChevy 489ciDome Top Pistons
- Chevy 489ci FHR Forged Pistons
- Solid Dome .202'' (Open Chamber Design)
- 4.280'' Bore (+.030'')
- Use w/6.385'' Connecting Rod & 4.250'' Crank Stroke
- 10.5:1/119cc Compression Ratio
- 8/pkg.
Technical Specs:
- Alloy: Premium 4032 Alloy
- Bore: 4.280'
- Crankshaft Stroke: 4.250'
- Connecting Rod Length: 6.385'
- Deck Height: 9.800'
- Compression Height: 1.270'
- Pin Size: 0.990' x 2.750'
- Pin Location: Centered
- Solid Dome Top: .202' 23cc 1 Valve Relief (Open Chamber Design)
- Intake Valve Relief: N/A
- Exhaust Valve Relief: N/A
- Top Landing Height: 0.320'
- Ring Grooves: 5/64' Top; 5/64' Middle; 3/16' Bottom
- Gram Weight: 597/141
- Compression Ratio: 10.5:1 w/119cc Heads
Part TypePiston
BrandUNITED ENGINE MACHINE
Package Height4.9
Package Width9.5
Package Length19.0
Weight14.05 PG
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part NumberIC9952.030
Package Qty1
Package TypeEA
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