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JE Pistons 257966 Forged Big Block Flat Top 4.530 Bore, Standard Deck Block

JE Pistons 257966 Forged Big Block Flat Top 4.530 Bore, Standard Deck Block

Original price was: $269.25.Current price is: $67.31.

SKU: IVJRV500669 Category:

Description

JE Pistons for big blocks engines are compatible with forced induction or nitrous (EXCEPT 1.120 CD). 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, including angle milled versions.

Includes:

  • Pin 990-2930-18-51S (150g) – 1.120″ CD (Pin upgrade recommended after 800hp)
  • Pin 990-2930-18-51S (174g) – 1.245″ CD and above
  • Double spiral locks (990-042-CS)

    Compression Ratio:

  • 110cc 10.1:1
  • 118cc 9.6:1
  • 124cc 9.2:1
    Note: *Made to Order. Oil rail supports included.*

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