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Vehicle Info NeededUNITED ENGINE MACHINEPART NUMBER: 648-IC782.030
Chevy 454ci Forged Pistons Hollow Dome Top .290"
$75796
Ships on Sep 11, 2026
Lowest Price GuaranteeChevy 454ciDome Top Pistons Use w/6.135'' Connecting Rods
- Chevy 454ci Forged Pistons
- Hollow Dome Top .290''
- 4.280'' Bore (+.030'')
- Use w/6.135'' Connecting Rod & 4.000'' Crank Stroke
- Comp. Ratio: 12.9/96.5cc; 10.7/108cc; 10.3/119cc
- 8/pkg
Technical Specs: - Alloy: Premium High Ductility 2618
- Bore: 4.280'
- 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
- Hollow Dome Top: .290' 27cc 1 Valve Relief (Closed Chamber Head)
- Intake Valve Relief: 0.286' Depth / 2.300' Diameter
- Exhaust Valve Relief: N/A
- Top Landing Height: 0.365'
- Ring Grooves: 1/16' Top; 1/16' Middle; 3/16' Bottom
- Gram Weight: 673/141
- Compression Ratio: 12.9:1 w/96.5cc Heads; 10.7:1 w/108cc Heads; 10.3:1 w/119cc
- Designed for O.E. and Edelbrock style cylinder heads
Part TypePiston
BrandUNITED ENGINE MACHINE
Package Height6.2
Package Width11.2
Package Length25.4
Weight18.6 PG
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part NumberIC782.030
Package Qty1
Package TypeEA
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