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Vehicle Info NeededUNITED ENGINE MACHINEPART NUMBER: 648-KB120KTM.STD
Chevy 350ci Hypereutectic Pistons & Rings Flat Top
$44702
Ships on 09/09/2026
Lowest Price GuaranteeChevy 350ciFlat Top Pistons Use w/5.700'' Connecting Rods
- Chevy 350ci Hypereutectic Pistons & Rings
- Flat Top
- 4.000'' Bore (STD)
- Use w/5.700'' Connecting Rod & 3.480'' Crank Stroke
- Comp. Ratio: 10.9/58cc; 10.4/62cc; 10.2/64cc; 9.0/76cc
- 8/pkg
Includes 648-4000AM8 ring set.
Technical Specs: - Alloy: Hypereutectic 390
- Bore: 4.000'
- Crankshaft Stroke: 3.480'
- Connecting Rod Length: 5.700'
- Deck Height: 9.025'
- Compression Height: 1.561'
- Pin Size: 0.9272'
- Pin Location: Centered
- Flat Top: -7cc 2 Symmetrical Valve Reliefs
- Intake Valve Relief: 0.280' Depth / 2.168' Diameter
- Exhaust Valve Relief: 0.280' Depth / 2.168' Diameter
- Top Landing Height: 0.275'
- Ring Grooves: 5/64' Top; 5/64' Middle; 3/16' Bottom
- Gram Weight: 535/145
- Compression Ratio: 10.9:1 w/58cc Heads; 10.4:1 w/62cc Heads; 10.2:1 w/64cc; 9.0:1 w/76cc Heads
Part TypePiston
BrandUNITED ENGINE MACHINE
Package Height5.5
Package Width9.9
Package Length22.5
Weight15.14 PG
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part NumberKB120KTM.STD
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
