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United Engine Machine IC736.040-1

Ford 289/302/393ci Forged Piston Solid Dome .150"

United Engine Machine IC736.040-1


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United Engine Machine IC736.040-1 Ford 289/302/393ci Forged Piston Solid Dome .150" $94.99
Ford 289/302/393ci Forged Piston
  • Solid Dome .150''
  • 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
  • 1/pkg

  • United Engine Machine IC736.040-1 Details

    Ford 289 / 302 / 393ci

  • Dome Top Pistons
  • 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
  • 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

  • Specifications:

    Manufacturer's Part Number:

    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.


    • High ductility 2618 alloy
    • Perfect for Nitrous, Turbocharged and Supercharged Apps
    • Dual forced pin oiling on most applications
    • 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