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JE Pistons 257951 Big Block Forged Inverted Dome 4.500 Bore

Original price was: $274.25.Current price is: $68.56.

SKU: IVJRV500670 Category:

Description

JE Pistons for big blocks engines 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) – 1.245″ CD and above
  • Double spiral locks (990-042-CS)

    Compression Ratio:

  • 110cc 8.8:1
  • 118cc 8.4:1
  • 124cc 8.1:1