JE 257947 Forged Inverted Dome Pistons 4.500 Bore

SKU: JE-257947_1

Big Block Chevy 509, Bore 4.500, Stroke 4.000, Rod Length 6.385, Inverted Dome -28cc, 591 Grams, Set of 8

Availability: In stock

Regular Price: $754.13

Special Price $731.51

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These big block pistons are compatible with forced induction, nitrous and angle milled heads. The inverted dome shape has been designed for maximum efficiency and horsepower. Valve reliefs will accommodate oversized valves and long duration, tight lobe separation cams.Compression Height figured using 9.780 block height with zero deck clearance. Precision CNC machined ring grooves accept 1/16, 1/16, 3/16 rings. Will fit both open and closed chamber cylinder heads.

Includes:
  • Pin #990-2930-18-51S (174g)
  • Double spiro locks (#990-042-CS)

    Compression Ratio:
  • 110cc 8.0:1
  • 118cc 7.6:1
  • 124cc 7.4:1
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    • Bore Size
      4.500
    • Compression Height
      1.395
    • Crankshaft Stroke
      4.000
    • Manufacturer
      JE
    • Piston Material
      2618 Forged
    • Piston Ring Size
      1/16 1/16 3/16
    • Piston Type
      Dish/Inverted Dome
    • Rod Length
      6.385
    • Vehicle Make
      Chevy BB
    • Wrist Pin Size
      0.990

    Need A Custom Quote For Your Part Or Engine? Give Us A Call!

    (800) 341-1528

    Details

    These big block pistons are compatible with forced induction, nitrous and angle milled heads. The inverted dome shape has been designed for maximum efficiency and horsepower. Valve reliefs will accommodate oversized valves and long duration, tight lobe separation cams.Compression Height figured using 9.780 block height with zero deck clearance. Precision CNC machined ring grooves accept 1/16, 1/16, 3/16 rings. Will fit both open and closed chamber cylinder heads.

    Includes:
  • Pin #990-2930-18-51S (174g)
  • Double spiro locks (#990-042-CS)

    Compression Ratio:
  • 110cc 8.0:1
  • 118cc 7.6:1
  • 124cc 7.4:1
  • Additional Information

    Bore Size 4.500
    Compression Height 1.395
    Crankshaft Stroke 4.000
    Manufacturer JE
    Piston Material 2618 Forged
    Piston Ring Size 1/16 1/16 3/16
    Piston Type Dish/Inverted Dome
    Rod Length 6.385
    Vehicle Make Chevy BB
    Wrist Pin Size 0.990
    List price N/A