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Vehicle Info NeededUNITED ENGINE MACHINEPART NUMBER: 648-IC736.030
Ford 289/302/393ci Forged Pistons Solid Dome .150"
$79342
Ships on Sep 03, 2026
Lowest Price GuaranteeFord 289 / 302 / 393ciDome Top Pistons
- Ford 289/302/393ci Forged Pistons
- Solid Dome .150''
- 4.030'' Bore (+.030'')
- 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: 4.030'
- 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
Ford Small Block Windsor Based Pistons
United Engine and Machine Company is proud to introduce the Icon line of forged pistons. Icon brings the same quality and performance you've come to expect from other United Engine brands while adding a new lightweight forged design. No matter your high performance application, there is an Icon piston for you.
Features:
- High ductility 2618 alloy
- Perfect for Nitrous, Turbocharged and Supercharged Apps
- Dual forced pin oiling on most applications
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- Lateral gas porting on higher compression ratios
- Fully machined with deep valve pockets
- Second land accumulator grooves
- Top land mini groove technology
- Diamond finished skirts
- Triple wound spiral locks
- Spacer rings included in short compression heights that intersect the wrist pin bore
- Sold in Sets (except when noted as 1 piston per package)
Click here for reference guide to piston top designs
Part TypePiston
Product LineUEM Pistons Icon Premium Forged Series Small Block Ford Pistons
BrandUNITED ENGINE MACHINE
Package Height4.0
Package Width9.3
Package Length18.1
Weight13.02 PG
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part NumberIC736.030
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
