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United Engine Machine Ford 289/302/393ci Forged Pistons Solid Dome .150"

United Engine Machine IC736.060


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United Engine Machine Ford 289/302/393ci Forged Pistons Solid Dome .150" $537.99
Ford 289/302/393ci Forged Pistons
  • Solid Dome .150''
  • 4.060'' Bore (+.060'')
  • 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

  • United Engine Machine IC736.060 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: 4.060''
  • 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

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

    Motor Vehicles

    WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.


    WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.

    Electrical Cords

    WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.