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Sealed Power L2491NF40

383ci Stroker Engines, .040" Overbore Piston Dia.: 4.040"

Sealed Power L2491NF40
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844-L2491NF40

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Sealed Power L2491NF40 383ci Stroker Engines, .040" Overbore Piston Dia.: 4.040" $72.99
383ci Stroker Engines, .040'' Overbore
  • Piston Dia.: 4.040''
  • Piston Top: Flat, 2-Valve Reliefs
  • Press or Floating Pin
  • Comp Ratio: 11.55:1 w/58cc Head, 9.49:1 w/76cc Head
  • Ring Grooves: 1/16'', 1/16'', 3/16''
  • Sold as Each

  • Specifications:

    Manufacturer's Part Number:
    L2491NF40

    Speed-Pro developed Powerforged Pistons, and set the pace in powerforged technology. The high silicon VMS-75 alloy is found exclusively in pistons "powerforged" by Speed-Pro. Up to 3,000 tons of force forges aluminum slugs into the basic piston form, which creates a grain flow pattern in the structure providing excellent strength, ductility, and heat dissipation.

    Note: All compression ratios are approximate. They're figured with a gasket thickness representative of those commonly used.

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