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Vehicle Info NeededUNITED ENGINE MACHINEPART NUMBER: 648-IC611.060
Chevy 434ci Forged Pistons Flat Top
$91103
Ships on 09/11/2026
Lowest Price GuaranteeChevy 434ciFlat Top Pistons Use w/6.00" Connecting Rods
- Chevy 305ci Forged Pistons
- Flat Top
- 4.125" Bore (+.060'')
- Use w/6.00" Connecting Rod & 4.000" Crank Stroke
- Comp. Ratio: 12.0/64cc
- 8/pkg
Technical Specs: - Alloy: Premium High Ductility 2618
- Bore: 4.125"
- Crankshaft Stroke: 4.000"
- Connecting Rod Length: 6.00"
- Deck Height: 9.025'
- Compression Height: 1.000'
- Pin Size: 0.927' x 2.500'
- Pin Location: Centered
- Flat Top: -3.2cc 2 Symmetrical Valve Reliefs
- Intake Valve Relief: 0.225' Depth / 2.000' Diameter
- Exhaust Valve Relief: 0.225' Depth / 1.680' Diameter
- Top Landing Height: 0.206'
- Ring Grooves: 1.5mm Top; 1.5mm Middle; 3/.0mm Bottom
- Gram Weight: 388/119
- Compression Ratio: 12.0/64cc Heads
Part TypePiston
BrandUNITED ENGINE MACHINE
Package Height3.8
Package Width9.2
Package Length18.2
Weight10.76 PG
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part NumberIC611.060
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
