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Chevy 489ciDome Top Pistons Use with Chevy 454 Block
- Chevy 489ci Hypereutectic Pistons
- Dome Top .180''
- 4.280'' Bore (+.030'')
- Use w/6.385'' Connecting Rod & 4.250'' Crank Stroke
- Comp. Ratio: 12.3/96.5cc; 11.3/105cc; 11.0/108cc; 10.0/119cc
- 8/pkg
Technical Specs: - Alloy: Hypereutectic 390
- Bore: 4.280'
- Crankshaft Stroke: 4.250'
- Connecting Rod Length: 6.385'
- Deck Height: 9.800'
- Compression Height: 1.270'
- Pin Size: 0.990'
- Pin Location: Centered (Includes Spacer Ring)
- Solid Dome Top: .180' 17cc IV (Closed Chamber Head)
- Intake Valve Relief: 0.266' Depth / 2.310' Diameter
- Exhaust Valve Relief: N/A
- Top Landing Height: 0.312'
- Ring Grooves: 1/16' Top; 1/16' Middle; 3/16' Bottom
- Gram Weight: 570/158
- Compression Ratio: 12.3:1 w/96.5cc Heads; 11.3:1 w/105cc Heads; 11.0:1 w/108cc; 10.0:1 w/119cc Heads
Part TypePiston
BrandUNITED ENGINE MACHINE
Package Height3.8
Package Width9.2
Package Length18.3
Weight14.54 PG
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part NumberKB398.030
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
