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Vehicle Info NeededUNITED ENGINE MACHINEPART NUMBER: 648-KB124.030
Ford 351W Hypereutectic Pistons Flat Top
$47275
Ships on 09/08/2026
Lowest Price GuaranteeFord 351WFlat Top Pistons
- Ford 351W Hypereutectic Pistons
- Flat Top
- 4.030'' Bore (+.030'')
- Use w/5.956'' Connecting Rod & 3.500'' Crank Stroke
- Comp. Ratio: 11.5/55cc; 10.8/60cc; 10.3/64cc; 9.7/69cc
- 8/pkg
Technical Specs: - Alloy: Hypereutectic 390
- Bore: 4.030'
- Crankshaft Stroke: 3.500'
- Connecting Rod Length: 5.956'
- Deck Height: 9.500'
- Compression Height: 1.774'
- Pin Size: 0.9122'
- Pin Location: Centered
- Flat Top: -6.5cc 2V Relief
- Intake Valve Relief: 0.257' Depth / 2.120' Diameter
- Exhaust Valve Relief: 0.247' Depth / 1.880' Diameter
- Top Landing Height: 0.275'
- Ring Grooves: 1/16' Top; 1/16' Middle; 3/16' Bottom
- Gram Weight: 621/143
- Compression Ratio: 11.5:1 w/55cc Heads; 10.8:1 w/60cc Heads; 10.3:1 w/64cc; 9.7:1 w/69cc Heads
- For 1971-up blocks. Pre-1971 blocks .020' shorter, not enough stock to clean up.
Part TypePiston
BrandUNITED ENGINE MACHINE
Package Height3.8
Package Width9.5
Package Length18.1
Weight14.63 PG
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part NumberKB124.030
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
