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Ford 289 / 302 / 393ciFlat Top Pistons
- Ford 289/302/393ci FHR Forged Piston
- Flat Top 4V
- 4.000'' Bore
- 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
- 1/pkg
This piston is based and intended for use on the Windsor-based Small Block Ford.
Technical Specs: - Alloy: Premium 4032 Alloy
- Bore: 4.000'
- 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: Offset
- Flat Top: -11cc 4 Symmetrical Valve Reliefs
- Intake Valve Relief: N/A
- Exhaust Valve Relief: N/A
- Top Landing Height: 0.247'
- Ring Grooves: 5/64' Top; 5/64' Middle; 3/16' Bottom
- Gram Weight: 528/131
- Compression Ratio (289ci): 9.2:1 w/54cc Heads; 8.8:1 w/58cc Heads; 8.2:1 w/64cc
- Compression Ratio (302ci): 9.5:1 w/54cc Heads; 9.1:1 w/58cc Heads; 8.5:1 w/64cc
- Compression Ratio (393ci): 12.0:1 w/54cc Heads; 11.4:1 w/58cc Heads; 11.0:1 w/64cc
BrandUNITED ENGINE MACHINE
Part CategoryPerformance Parts
Vendor Part NumberSIC9924.STD
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
