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Part Number:
JE-242931

JE Pistons 242931 Forged 427/ 428 FE Dish 4.280 Bore

JE Pistons, Ford 489, Bore 4.280, Stroke 4.250, Rod Length 6.700, Inverted Dome -25cc, 521 Grams, Set of 8

Special Price $1,059.29 Regular Price $1,176.99
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⚠ PROP 65 WARNING
⚠ WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer. Please contact us to obtain a list of harmful chemicals. For more information, go to www.P65Warnings.ca.gov.
JE Pistons specially designed for the latest aftermarket blocks and heads, JE pistons are for use with the 427 or the 428 crank and aftermarket 4.250" crank with aftermarket 6.700" rod. The factory block should be sonic checked for 4.280" and 4.310" bores. These pistons use 1/16, 1/16, 3/16 rings. The compression ratios are figured for 10.150 block height. Larger bore sizes available as customs, call JE for details. Pin upgrade recommended above 800hp.

Includes:
  • Pin #990-2930-15-51S (150g)
  • Double spiro locks (#990-042-CS)

    Compression Ratio:
  • 72cc 10.3:1
  • 74cc 10.2:1
  • 88cc 9.1:1
    Note: *Made to Order.*
  • More Information
    CNC Part Number JE-242931
    Price $1,176.99
    Manufacturer's Part Number 242931
    Brands JE
    Part Types Engine Piston
    Departments Parts
    Vehicle Make Ford FE
    Bore Size 4.280
    Crankshaft Stroke 4.250
    Rod Length 6.700
    Piston Type Dish
    Compression Height 1.325
    Piston Material 2618 Forged
    Piston Ring Size 1/16 1/16 3/16
    Wrist Pin Size 0.990
    Custom Notices ⚠ PROP 65 WARNING

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