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United Engine Machine Ford 302ci Forged Pistons Solid Dome Top .150"

United Engine Machine IC746.040


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United Engine Machine Ford 302ci Forged Pistons Solid Dome Top .150" $537.99
Ford 302ci Forged Pistons
  • Solid Dome Top .150''
  • 4.040'' Bore (+.040'')
  • Use w/5.400'' Connecting Rod & 3.000'' Crank Stroke
  • Comp. Ratio: 12.3/54cc; 11.5/58cc; 10.6/64cc
  • 8/pkg

  • United Engine Machine IC746.040 Details

    Ford 302ci

  • Dome Top Pistons
  • This piston is based and intended for use on the Windsor-based Small Block Ford.

    Technical Specs:
  • Alloy: Premium High Ductility 2618
  • Bore: 4.040''
  • Crankshaft Stroke: 3.000''
  • Connecting Rod Length: 5.400''
  • Deck Height: 8.206''
  • Compression Height: 1.298''
  • Pin Size: 0.927'' x 2.750''
  • Pin Location: Centered
  • Flat Top: 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: 459/131
  • Compression Ratio: 12.3:1 w/54cc Heads; 11.5:1 w/58cc Heads; 10.6:1 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

    Some parts are not legal for use in California or other states with similar laws / regulations