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Vehicle Info NeededUNITED ENGINE MACHINEPART NUMBER: 648-IC719.040
Ford 289/302/393ci Forged Pistons Flat Top 2V
$74890
Ships on Sep 04, 2026
Lowest Price GuaranteeFord 289 / 302 / 393ciFlat Top Pistons
- Ford 289/302/393ci Forged Pistons
- Flat Top 2V
- 4.040'' Bore (+.040'')
- 289ci use w/5.155'' Connecting Rod & 2.870'' Stroke
- 302ci use w/5.090'' Connecting Rod & 3.000'' Stroke
- 393ci use w/5.956'' Connecting Rod & 3.850'' Stroke
- 8/pkg
This piston is based and intended for use on the Windsor-based Small Block Ford. 351W note, pre-1971 deck heights are .020' shorter. Insufficient stock for clean-up.
Technical Specs: - Alloy: Premium High Ductility 2618
- Bore: 4.040'
- Crankshaft Stroke: 2.870'(289ci); 3.000'(302ci); 3.850'(393ci)
- Connecting Rod Length: 5.155'(289ci); 5.090'(302ci); 5.956'(393ci)
- Deck Height: 8.206'(289/302ci); 9.500'(393ci - 351W Block)
- Compression Height: 1.608' (all)
- Pin Size: 0.912' x 2.750'
- Pin Location: Centered
- Flat Top: -4.8cc 2 Valve Reliefs
- Intake Valve Relief: .266' Depth / 2.120' Diameter
- Exhaust Valve Relief: .254' Depth / 1.880' Diameter
- Top Landing Height: 0.229'
- Ring Grooves: 1/16' Top; 1/16' Middle; 3/16' Bottom
- Gram Weight: 484/131
- Compression Ratio (289ci): 9.9:1 w/54cc Heads; 9.4:1 w/58cc Heads; 8.8:1 w/64cc
- Compression Ratio (302ci): 10.3:1 w/54cc Heads; 9.8:1 w/58cc Heads; 9.1:1 w/64cc
- Compression Ratio (393ci): 12.9:1 w/54cc Heads; 12.3:1 w/58cc Heads; 11.4:1 w/64cc
Part TypePiston
BrandUNITED ENGINE MACHINE
Part CategoryPerformance Parts
Vendor Part NumberIC719.040
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
