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Ford 289 / 302 / 393ciDome Top Pistons
- Ford 289/302/393ci Forged Piston
- Solid Dome .150''
- 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. 351W note, pre-1971 deck heights are .020' shorter. Insufficient stock for clean-up.
Technical Specs: - Alloy: Premium High Ductility 2618
- 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: Centered
- Solid Dome Top:.150' 6.8cc 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: 516/131
- Compression Ratio (289ci): 11.8:1 w/42cc Heads; 11.1:1 w/46cc Heads; 10.2:1 w/52cc
- Compression Ratio (302ci): 12.3:1 w/54cc Heads; 11.5:1 w/58cc Heads; 10.6:1 w/64cc
- Compression Ratio (393ci): 15.5:1 w/54cc Heads; 14.5:1 w/58cc Heads; 13.3:1 w/64cc
Part TypePiston
BrandUNITED ENGINE MACHINE
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part NumberSIC736.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
