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Vehicle Info NeededUNITED ENGINE MACHINEPART NUMBER: 648-IC9918.040
Chevy 454ci FHR Forged Pistons Solid Dome .500" (Open Chamber Design)
$70540
Ships on 09/14/2026
Lowest Price GuaranteeChevy 454ciDome Top Pistons
- Chevy 454ci FHR Forged Pistons
- Solid Dome .500'' (Open Chamber Design)
- 4.290'' Bore (+.040'')
- Use w/6.135'' Connecting Rod & 4.000'' Crank Stroke
- 12.3:1/119cc Compression Ratio
- 8/pkg.
Technical Specs:
- Alloy: Premium 4032 Alloy
- Bore: 4.290'
- Crankshaft Stroke: 4.000'
- Connecting Rod Length: 6.135'
- Deck Height: 9.800'
- Compression Height: 1.645'
- Pin Size: 0.990' x 2.750'
- Pin Location: Centered
- Solid Dome Top: .500' 44.7cc 1 Valve Relief (Open Chamber Design)
- Intake Valve Relief: N/A
- Exhaust Valve Relief: N/A
- Top Landing Height: 0.325'
- Ring Grooves: 5/64' Top; 5/64' Middle; 3/16' Bottom
- Gram Weight: 723/141
- Compression Ratio: 12.3:1 w/119cc Heads
Part TypePiston
BrandUNITED ENGINE MACHINE
Package Height4.9
Package Width9.5
Package Length19.8
Weight16.71 PG
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part NumberIC9918.040
Package Qty1
Package TypeEA
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