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Vehicle Info NeededUNITED ENGINE MACHINEPART NUMBER: 648-KB315.030
Ford 351W Hypereutectic Pistons Flat Top
$43011
Ships on 09/08/2026
Lowest Price GuaranteeFord 351WFlat Top Pistons
Ford 351W Hypereutectic PistonsFlat Top 4.030'' Bore (+.030") Use w/5.956'' Connecting Rod & 3.500'' Crank Stroke Comp. Ratio: 12.5/55cc; 11.7/60cc; 11.1/64cc; 10.5/69cc 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: 0cc
- Intake Valve Relief: N/A
- Exhaust Valve Relief: N/A
- Top Landing Height: 0.217'
- Ring Grooves: 5/64' Top; 5/64' Middle; 3/16' Bottom
- Gram Weight: 517/107
- Compression Ratio: 12.5/55cc; 11.7/60cc; 11.1/64cc; 10.5/69cc
- Notes: Pre 71 blocks .020 shorter, not enough stock to clean up. Designed for Ford Sportman "N" head.
Part TypePiston
BrandUNITED ENGINE MACHINE
Package Height4.4
Package Width9.9
Package Length18.4
Weight12.76 PG
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part NumberKB315.030
Package Qty1
Package TypeEA
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