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United Engine Machine IC837.033

ICON Premium Forged Big Block Chrysler 400 "B" 451ci / 511ci Pistons Step Dish Top 4.375" Bore

United Engine Machine IC837.033
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648-IC837.033 NEW

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Estimated ship date 09/26/17 if Ordered Today
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United Engine Machine IC837.033 ICON Premium Forged Big Block Chrysler 400 "B" 451ci / 511ci Pistons Step Dish Top 4.375" Bore $537.99
Big Block Chrysler "B" 451ci / 511ci Forged Pistons
  • Step Dish Top
  • 4.375" Bore (+.033")
  • 451ci - 6.768" Rod & 3.750" Stroke; C/R 10.5/75cc; 10.2/78cc; 9.4/88cc
  • 511ci - 6.535" Rod & 4.250" Stroke; C/R 11.8/75cc; 11.5/78cc; 10.5/88cc
  • 8

  • United Engine Machine IC837.033 Details

    Chrysler "B" 451ci / 511ci

  • Step Dish 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
    • 4.375" Bore + 3.750 Stroke = 451ci
    • 4.375" Bore + 4.250 Stroke = 511ci

     

    Technical Specs:

    • Alloy: Premium High Ductility 2618
    • Bore: 4.375"
    • 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: 12.0cc
    • Intake Valve Relief: 0.215" Depth / 2.300" Diameter
    • Exhaust Valve Relief: 0.197" Depth / 1.880" Diameter
    • Top Landing Height: 0.296"
    • Ring Grooves: 1/16" Top; 1/16" Middle; 3/16" Bottom
    • Gram Weight: 709/158
    • 451ci Compression Ratio: 10.5:1 w/75cc Heads; 10.2:1 w/78cc Heads; 9.4:1 w/88cc
    • 511ci Compression Ratio: 11.8:1 w/75cc Heads; 11.5:1 w/78cc Heads; 10.5:1 w/88cc

    Specifications:

    Manufacturer's Part Number:
    IC837.033

    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
    Only $1,343.02
    Order Today
    Ships 10/02/17

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