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Vehicle Info NeededUNITED ENGINE MACHINEPART NUMBER: 648-IC9951.060-1
Chevy 489ci FHR Forged Piston Flat Top
$17618
Ships on 09/09/2026
Lowest Price GuaranteeChevy 489ciFlat Top Pistons
- Chevy 489ci FHR Forged Piston
- Flat Top
- 4.310'' Bore (+.060'')
- Use w/6.385'' Connecting Rod & 4.250'' Crank Stroke
- 10.2:1/96.5cc; 9.5:1/105cc; 8.6:1/119cc Compression Ratio
- 1/pkg.
Technical Specs:
- Alloy: Premium 4032 Alloy
- Bore: 4.310'
- 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
- Flat Top: -3cc 1 Valve Relief
- 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: 527/141
- Compression Ratio: 10.2:1 w/96.5cc Heads; 9.5:1 w/105cc Heads; 8.6:1 w/119cc Heads
Part TypePiston
BrandUNITED ENGINE MACHINE
Package Height4.0
Package Width4.0
Package Length4.0
Weight1.5 PG
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part NumberSIC9951.060
Package Qty1
Package TypeEA
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