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Chevy 489ciDome Top Pistons Use w/6.135'' Connecting Rods
- Chevy 489ci Forged Piston
- Solid Dome Top .130''
- 4.280'' Bore (+.030'')
- Use w/6.135'' Connecting Rod & 4.250'' Crank Stroke
- Comp. Ratio: 11.7/96.5cc; 9.9/108cc; 9.6/119cc
- 1/pkg
Technical Specs: - Alloy: Premium High Ductility 2618
- Bore: 4.280'
- Crankshaft Stroke: 4.250'
- Connecting Rod Length: 6.135'
- Deck Height: 9.800'
- Compression Height: 1.520'
- Pin Size: 0.990' x 2.750'
- Pin Location: Centered
- Solid Dome Top: .130' 12cc 1 Valve Relief (Closed Chamber Head)
- Intake Valve Relief: 0.286' Depth / 2.300' Diameter
- Exhaust Valve Relief: N/A
- Top Landing Height: 0.350'
- Ring Grooves: 1/16' Top; 1/16' Middle; 3/16' Bottom
- Gram Weight: 623/141
- Compression Ratio: 11.7:1 w/96.5cc Heads; 9.9:1 w/108cc Heads; 9.6:1 w/119cc
- Designed for O.E. and Edelbrock style cylinder heads.
Part TypePiston
BrandUNITED ENGINE MACHINE
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part NumberSIC786.030
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
