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Vehicle Info NeededUNITED ENGINE MACHINEPART NUMBER: 648-KB177.030
Ford 351C Hypereutectic Pistons Flat Top
$42997
Ships on 09/04/2026
Lowest Price GuaranteeFord 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
Technical Specs: - Alloy: Hypereutectic 390
- Bore: 4.030'
- Crankshaft Stroke: 3.500'
- Connecting Rod Length: 5.778'
- Deck Height: 9.206'
- Compression Height: 1.670'
- Pin Size: 0.9122'
- Pin Location: Centered
- Flat Top: -2cc 1V
- Intake Valve Relief: 0.148' Depth / 2.470' Diameter
- Exhaust Valve Relief: N/A
- Top Landing Height: 0.301'
- Ring Grooves: 5/64' Top; 5/64' Middle; 3/16' Bottom
- Gram Weight: 582/143
- Compression Ratio: 11.1:1 w/62cc Heads; 10.6:1 w/66cc Heads; 9.5:1 w/76cc Heads
- For 1971-up blocks. Pre-1971 blocks .020' shorter, not enough stock to clean up.
Part TypePiston
BrandUNITED ENGINE MACHINE
Package Height4.7
Package Width9.3
Package Length18.1
Weight13.14 PG
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part NumberKB177.030
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
