Chevy 489ci Forged Piston Solid Dome Top .130"

Name: Chevy 489ci Forged Piston Solid Dome Top .130"
Brand: UNITED ENGINE MACHINE
SKU: 648-IC787.030-1
Price: 199.58 USD
Availability: InStock

^$199⁵⁸

Ships on Sep 03, 2026

Lowest Price Guarantee

Chevy 489ci

Dome Top Pistons

Use w/6.385'' Connecting Rods

Solid Dome Top .130''
4.280'' Bore (+.030'')
Use w/6.385'' 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: 6.385'
Deck Height: 9.800'
Compression Height: 1.270'
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: 0.336'
Ring Grooves: 1/16' Top; 1/16' Middle; 3/16' Bottom
Gram Weight: 566/141
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

Package Height5.0

Package Width5.1

Package Length5.2

Weight1.45 PG

Part CategoryPerformance Parts

Part FitmentSemi Universal

Vendor Part NumberSIC787.030

Package Qty1

Package TypeEA

No Questions

No Reviews

Some parts are not legal for use in California or other states with similar laws / regulations

Chevy 489ci Forged Piston Solid Dome Top .130"

⚠️ Warning

Motor Vehicles

Tools

Electrical Cords