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United Engine Machine ICON Premium Forged Big Block Chrysler 400 "B" 452ci / 512ci Pistons Flat Top 4.382" Bore

United Engine Machine IC823.040
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648-IC823.040

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United Engine Machine ICON Premium Forged Big Block Chrysler 400 "B" 452ci / 512ci Pistons Flat Top 4.382" Bore $537.99
Big Block Chrysler "B" 452ci / 512ci Forged Pistons
  • Flat Top
  • 4.382" Bore (+.040")
  • 452ci - 6.768" Rod & 3.750" Stroke; C/R 11.3/75cc; 11.0/78cc; 10.0/88cc
  • 512ci - 6.535" Rod & 4.250" Stroke; C/R 12.7/75cc; 12.3/78cc; 11.2/88cc
  • 8/pkg

  • United Engine Machine IC823.040 Details

    Chrysler "B" 451ci / 511ci

  • Flat Top Pistons
  • 451ci Use w/ 6.768" Connecting Rods & 3.750" Crank Stroke
  • 511ci Use w/ 6.535" Connecting Rods & 4.250" Crank Stroke
  •  

    Technical Notes:

    • For use with 400 "B" blocks
    • Stock standard 400 cylinder bore is 4.342" with 3.380" crankshaft stroke
    • 4.382" Bore + 3.750 Stroke = 452ci
    • 4.382" Bore + 4.250 Stroke = 512ci

     

    Technical Specs:

    • Alloy: Premium High Ductility 2618
    • Bore: 4.382"
    • Crankshaft Stroke: 3.750"
    • Connecting Rod Length: 6.768"
    • Deck Height: 9.980" (RB)
    • Compression Height: 1.322"
    • Pin Size: 0.9900'' x 3.000"
    • Pin Location: Centered
    • Flat Top: 2 Valve Reliefs
    • Effective Head Volume: 4.5cc
    • Intake Valve Relief: 0.215" Depth / 2.300" Diameter
    • Exhaust Valve Relief: 0.199" Depth / 1.880" Diameter
    • Top Landing Height: 0.250"
    • Ring Grooves: 1/16" Top; 1/16" Middle; 3/16" Bottom
    • Gram Weight: 542/158
    • 452ci Compression Ratio: 11.3:1 w/75cc Heads; 11.0:1 w/78cc Heads; 10.0:1 w/88cc
    • 512ci Compression Ratio: 12.7:1 w/75cc Heads; 12.3:1 w/78cc Heads; 11.2:1 w/88cc

    Specifications:

    Manufacturer's Part Number:
    IC823.040

    United Engine and Machine Company is proud to introduce their new 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
    • 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


    Click here for reference guide to piston top designs

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