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- UEM Pistons KB Signature Series Hypereutectic Ford Pistons
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 pistons are 100% CNC machined and T-6 heat treated from 16%-18% silicon 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)Click here for reference guide to piston top designs
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Ford 2.3LFlat Top Pistons
Ford 2.3L Hypereutectic Pistons Flat Top 3.780" Bore Use w/5.205'' Connecting Rod & 3.126'' Crank Stroke Comp. Ratio: 9.1/60cc; 8.7/64cc 4/pkg
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$239.99
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Ford 2.3L Hypereutectic PistonFlat Top 3.780'' Bore (+.030'') Use w/5.700" Connecting Rod & 3.126" Stroke Comp. Ratio: 9.1/60cc; 8.7/64cc Sold Individually
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$69.26
Estimated to ship direct from manufacturer on 05/19/25, pending manufacturer availability.
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Ford 302ciDome Top Pistons
United Engine Machine KB116.030
United Engine Machine Ford 302ci Hypereutectic Pistons Solid Dome .200"
Ford 302ci Hypereutectic Pistons Solid Dome .200'' 4.030'' Bore (+.030'') Use w/5.090'' Connecting Rod & 3.000'' Crank Stroke Comp. Ratio: 11.3/54cc; 10.5/58cc; 10.0/64cc; 9.4/69cc 8/pkg
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$439.99
Estimated to ship direct from manufacturer on 05/19/25, pending manufacturer availability.
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United Engine Machine KB116.060
United Engine Machine KB Hypereutectic Piston Set for Ford 302 ci. Solid Dome .140 in.
Ford 302ci Hypereutectic PistonsSolid Dome .140'' 4.060'' Bore (+.060'') Use w/5.090'' Connecting Rod & 3.000'' Crank Stroke Comp. Ratio: 11.3/54cc; 10.5/58cc; 10.0/64cc; 9.4/69cc 8/pkg
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$466.99
Estimated to ship direct from manufacturer on 05/19/25, pending manufacturer availability.
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United Engine Machine KB116.060-1
United Engine Machine KB Hypereutectic Single Piston for Ford 302 ci. Solid Dome .140 in.
Ford 302 ci. Hypereutectic PistonSolid Dome .140 in. (-2.6 cc) 4.060 in. Bore (+.060 in.) Use w/5.090 in. Connecting Rod & 3.000 in. Crank Stroke Comp. Ratio: 11.3/54cc; 10.5/58cc; 10.0/64cc; 9.4/69cc Sold Individually
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$92.99
Estimated to ship direct from manufacturer on 05/19/25, pending manufacturer availability.
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Ford 302ciFlat Top Pistons
United Engine Machine KB115.030
United Engine Machine KB Hypereutectic Pistons [Small Block Ford 302ci, 5.0L]
KB Hypereutectic PistonSmall Block Ford 302 ci/5.0L Flat Top 4.030 in. Bore (+.030) Use w/5.090'' Connecting Rod & 3.000'' Crank Stroke Comp. Ratio: 10.0/54cc; 9.6/58cc; 9.0/64cc; 8.5/69cc Set of 8
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$367.99
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United Engine Machine KB115.030-1
United Engine Machine KB Hypereutectic Piston [Small Block Ford 302ci, 5.0L]
KB Hypereutectic PistonSmall Block Ford 302 ci/5.0L Flat Top 4.030 in. Bore (+.030) Use w/5.090'' Connecting Rod & 3.000'' Crank Stroke Comp. Ratio: 10.0/54cc; 9.6/58cc; 9.0/64cc; 8.5/69cc Sold Individually
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$99.99
Estimated to ship direct from manufacturer on 05/21/25, pending manufacturer availability.
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Ford 302ci Hypereutectic Pistons Flat Top Lightweight 4.030'' Bore (+.030'') Use w/5.090'' Connecting Rod & 3.000'' Crank Stroke Comp. Ratio: 10.0/54cc; 9.6/58cc; 9.0/64cc; 8.5/69cc 8/pkg
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$466.99
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Ford 302ci Hypereutectic Pistons Flat Top Lightweight 4.060'' Bore (+.060'') Use w/5.090'' Connecting Rod & 3.000'' Crank Stroke Comp. Ratio: 10.0/54cc; 9.6/58cc; 9.0/64cc; 8.5/69cc 8/pkg
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$466.99
Estimated to ship direct from manufacturer on 05/19/25, pending manufacturer availability.
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Ford 302ci Hypereutectic Piston and King KitFlat Top Lightweight 4.060'' Bore (.060") Use w/5.090'' Connecting Rod & 3.000'' Crank Stroke Comp. Ratio: 10.0/54cc; 9.6/58cc; 9.0/64cc; 8.5/69cc 8/pkg
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$509.99
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Ford 302ci Hypereutectic PistonsFlat Top 4.0'' Bore (+.040'') Use w/5.090" Connecting Rod & 3.0" Stroke Comp. Ratio: 10.0/54cc; 9.6/58cc; 9.0/64cc; 8.5/69cc Set of 8
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$499.99
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Ford 347ci Stroker Pistons
United Engine Machine KB349.030
United Engine Machine 347ci Stroker w/5.400" Pistons, .030" Overbore Piston Dia.: 4.030"
347ci Stroker w/5.400'' Pistons, .030'' OverborePiston Dia.: 4.030'' Piston Top: Flat Top, Neutral Comp Ratio: 12.2:1 w/55cc Heads, 10.8:1 w/64cc Heads Rings: 1/16'', 1/16'', 3/16'' Priced Each, Sold as Set
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$464.99
Estimated to ship direct from manufacturer on 05/19/25, pending manufacturer availability.
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United Engine Machine KB349.040
United Engine Machine 347ci Stroker w/5.400" Pistons, .040" Overbore Piston Dia.: 4.040"
347ci Stroker w/5.400'' Pistons, .040'' OverborePiston Dia.: 4.040'' Piston Top: Flat Top, Neutral Comp Ratio: 12.2:1 w/55cc Heads, 10.8:1 w/64cc Heads Rings: 1/16'', 1/16'', 3/16'' Priced Each, Sold as Set
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$464.99
Estimated to ship direct from manufacturer on 05/19/25, pending manufacturer availability.
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Ford 347ciDish Top Pistons Use with Ford 302 Block
Ford 347ci Hypereutectic Piston Step Dish 4.030'' Bore (+.030'') Use w/5.400'' Connecting Rod & 3.400'' Crank Stroke Comp. Ratio: 9.9/55cc; 9.4/60cc; 9.0/64cc; 8.6/69cc 1/pkg
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$84.99
Estimated to ship direct from manufacturer on 05/19/25, pending manufacturer availability.
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Ford 347ci Hypereutectic Pistons Step Dish 4.030'' Bore (+.030'') Use w/5.400'' Connecting Rod & 3.400'' Crank Stroke Comp. Ratio: 9.9/55cc; 9.4/60cc; 9.0/64cc; 8.6/69cc 8/pkg
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$426.99
Estimated to ship direct from manufacturer on 05/19/25, pending manufacturer availability.
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Ford 347ci Hypereutectic Pistons Step Dish 4.060'' Bore (+.060'') Use w/5.400'' Connecting Rod & 3.400'' Crank Stroke Comp. Ratio: 9.9/55cc; 9.4/60cc; 9.0/64cc; 8.6/69cc 8/pkg
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$426.99
Estimated to ship direct from manufacturer on 05/19/25, pending manufacturer availability.
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United Engine Machine KB366KTM.030
United Engine Machine Ford 347ci V8 Windsor Hypereutectic Pistons Step Dish 2V
Ford 347ci V8 Windsor Hypereutectic Pistons Step Dish 2 V 4.030'' Bore (+.030'') Use w/5.400'' Connecting Rod & 3.400'' Crank Stroke Comp. Ratio: 9.9/55cc; 9.4/60cc; 9.0/64cc; 8.6/69cc Set of 8
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$319.74
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Ford 347ciDome Top Pistons Use with Ford 302 Block
United Engine Machine KB332.030
United Engine Machine Ford 347ci Hypereutectic Pistons Solid Dome .100"
Ford 347ci Hypereutectic Pistons Solid Dome .100'' 4.030'' Bore (+.030'') Use w/5.400'' Connecting Rod & 3.400'' Crank Stroke Comp. Ratio: 13.4/60cc; 12.6/64cc; 11.7/69cc Designed for Ford Sportsman ''N'' Head 8/pkg
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$442.99
Estimated to ship direct from manufacturer on 05/19/25, pending manufacturer availability.
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United Engine Machine KB332.040
United Engine Machine Ford 347ci Hypereutectic Pistons Solid Dome .100"
Ford 347ci Hypereutectic Pistons Solid Dome .100'' 4.040'' Bore (+.040'') Use w/5.400'' Connecting Rod & 3.400'' Crank Stroke Comp. Ratio: 13.4/60cc; 12.6/64cc; 11.7/69cc Designed for Ford Sportsman ''N'' Head 8/pkg
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$442.99
Estimated to ship direct from manufacturer on 05/19/25, pending manufacturer availability.
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United Engine Machine KB332.060
United Engine Machine Ford 347ci Hypereutectic Pistons Solid Dome .100"
Ford 347ci Hypereutectic Pistons Solid Dome .100'' 4.060'' Bore (+.060'') Use w/5.400'' Connecting Rod & 3.400'' Crank Stroke Comp. Ratio: 13.4/60cc; 12.6/64cc; 11.7/69cc Designed for Ford Sportsman ''N'' Head 8/pkg
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$442.99
Estimated to ship direct from manufacturer on 05/19/25, pending manufacturer availability.
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Ford 347ciFlat Top Pistons Use with Ford 302 Block
United Engine Machine KB246.030
United Engine Machine KB246.030 Hypereutectic Flat Top Piston Set for Ford Small Block 347 ci. Stroker Engines
Ford 347ci Hypereutectic PistonsFlat Top 4.030'' Bore (+.030'') Use w/5.400'' Connecting Rod & 3.400'' Crank Stroke Comp. Ratio: 11.2/55cc; 10.5/60cc; 10.0/64cc; 9.5/69cc 8/pkg
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$402.99
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United Engine Machine KB246.030-1
United Engine Machine KB246.030-1 Hypereutectic Flat Top Piston for Ford Small Block 347 ci. Stroker Engines
Ford 347 ci. Hypereutectic PistonFlat Top 4.030 in. Bore (+.030) Use w/5.400 in. Connecting Rod & 3.400 in. Crank Stroke Comp. Ratio: 11.2/55cc; 10.5/60cc; 10.0/64cc; 9.5/69cc Sold Individually
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$94.99
Estimated to ship direct from manufacturer on 05/21/25, pending manufacturer availability.
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Ford 347ci Hypereutectic Pistons Flat Top 4.040'' Bore (+.040'') Use w/5.400'' Connecting Rod & 3.400'' Crank Stroke Comp. Ratio: 11.2/55cc; 10.5/60cc; 10.0/64cc; 9.5/69cc 8/pkg
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$424.99
Estimated to ship direct from manufacturer on 05/19/25, pending manufacturer availability.
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Ford 347ci Hypereutectic Pistons Flat Top 4.060'' Bore (+.060'') Use w/5.400'' Connecting Rod & 3.400'' Crank Stroke Comp. Ratio: 11.2/55cc; 10.5/60cc; 10.0/64cc; 9.5/69cc 8/pkg
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$426.99
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Ford 347ci Hypereutectic Pistons Flat Top 4.000'' Bore (STD) Use w/5.400'' Connecting Rod & 3.400'' Crank Stroke Comp. Ratio: 11.2/55cc; 10.5/60cc; 10.0/64cc; 9.5/69cc 8/pkg
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$426.99
Estimated to ship direct from manufacturer on 05/19/25, pending manufacturer availability.
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United Engine Machine KB349.060
United Engine Machine Ford 347ci Hypereutectic Pistons Flat Top (No Reliefs)
Ford 347ci Hypereutectic Pistons Flat Top (No Reliefs) 4.060'' Bore (+.060'') Use w/5.400'' Connecting Rod & 3.400'' Crank Stroke Comp. Ratio: 12.2/55cc; 11.4/60cc; 10.8/64cc Designed for Ford Sportsman ''N'' Head 8/pkg
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$464.99
Estimated to ship direct from manufacturer on 05/19/25, pending manufacturer availability.
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Ford 351CFlat Top Pistons
Ford 351C Hypereutectic Pistons Flat Top 4.030'' Bore (+.030'') Use w/5.778'' Connecting Rod & 3.500'' Crank Stroke Comp. Ratio: 11.1/62cc; 10.6/66cc; 9.5/76cc 8/pkg
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$442.99
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Ford 351W with 351C headsFlat Top Pistons
United Engine Machine KB110KTM.030
United Engine Machine Ford 351W Hypereutectic Piston and Ring Kit Flat Top
Ford 351W Hypereutectic Piston and Ring Kit Flat Top 4.030'' Bore (+.030'') Use w/5.956'' Connecting Rod & 3.500'' Crank Stroke Comp. Ratio: 11.1/62cc; 10.6/66cc; 9.5/76cc 8/pkg
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$594.99
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Ford 351WDish Top Pistons
Ford 351W Hypereutectic Piston Dish Top 4.030'' Bore (+.030'') Use w/5.956'' Connecting Rod & 3.500'' Crank Stroke Comp. Ratio: 9.6/55cc; 9.1/60cc; 8.8/64cc; 8.4/69cc 1/pkg
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$96.99
Estimated to ship direct from manufacturer on 05/19/25, pending manufacturer availability.
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Ford 351W Hypereutectic PistonsDish Top 4.060'' Bore (+.060'') Use w/5.956'' Connecting Rod & 3.500'' Crank Stroke Comp. Ratio: 10.3/55cc; 9.8/60cc; 9.4/64cc; 8.9/68cc 8/pkg With Rings #648-4000AM8.060
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$522.99
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