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Vehicle Info NeededUNITED ENGINE MACHINEPART NUMBER: 648-KB190.STD
Chrysler 360ci Hypereutectic Pistons Dome Top
$48792
Ships on 09/10/2026
Lowest Price GuaranteeChrysler 360ciDome Top Pistons
Chrysler 360ci Hypereutectic PistonsSolid Dome Top 4.000'' Bore (Standard) Use w/6.123" Connecting Rod & 3.580" Stroke Comp. Ratio: 11.8/62cc; 11.5/64cc; 10.9/68cc; 10.5/72cc 8/pkg
Technical Specs:
- Alloy: Hypereutectic 390
- Bore: 4.000'
- Crankshaft Stroke: 3.580'
- Connecting Rod Length: 6.123'
- Deck Height: 9.599'
- Compression Height: 1.675'
- Pin Size: .9842'
- Pin Location: Centered
- Dome Top: -1.2cc 2V Relief
- Intake Valve Relief: 0.366' Depth / 2.200' Diameter
- Exhaust Valve Relief: 0.366' Depth / 2.200' Diameter
- Top Landing Height: 0.275'
- Ring Grooves: 5/64' Top; 5/64' Middle; 3/16' Bottom
- Gram Weight: 524/132
- Compression Ratio: 11.8/62cc; 11.5/64cc; 10.9/68cc; 10.5/72cc
- Notes: Pistons may protrude on 1992 and up Magnum truck blocks.
100% CNC Machined Pistons
New high silicon alloys and diamond tooling have give Keith Black designers the material and equipment for performance breakthroughs in engine design. KB piston are 100% CNC machined and T-6 heat treated from 16%-18% silcon Hypereutectic alloy. Features include drilled oil returns and pin oil supply, .072'' spiral wound retaining ring, 100% diamond turned, compensated high strength ring lands, high top ring location, 360° pressure pin oiling, diamond honed pin hole and lightweight rigid rib skirt design.
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Features:
- 390 Hypereutectic alloy with 16% Silicon
- Fully machined crowns and valve reliefs
- Drilled oil drain backs
- Full floating wrist pins
- Triple wound spiral locks
- Reflective alloy allows 2% power increase
- Quench dome technology minimizes deterioration
- Zero deck quench designs
- Sold in Sets (except when noted as 1 piston per package)
Part TypePiston
Product LineUEM Pistons KB Signature Series Hypereutectic Chrysler Pistons
BrandUNITED ENGINE MACHINE
Package Height3.7
Package Width8.9
Package Length18.3
Weight12.8 PG
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part NumberKB190.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
