Part Number:
JE-338257

JE Pistons 338257 Forged 460 Flat Top 4.470 Bore

JE Pistons, BBF 559, Bore 4.470, Stroke 4.300/ 4.500, Rod Length 6.800/ 6.700, Flat Top -3.0cc, 627 Grams, Set of 8

$1,016.99
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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.
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JE pistons are specifically designed for the latest aftermarket blocks and heads, these pistons are for the 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 are available as customs, call JE for details.

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

    Compression Ratio:
  • 74cc 13.6:1/ 14.2:1
  • 80cc 12.7:1/ 13.3:1
  • 94cc 11.2:1/ 11.7:1
    Note: *Made to Order.*
  • More Information
    CNC Part Number JE-338257
    Price $1,016.99
    Sold As Set
    Manufacturer's Part Number 338257
    Brands JE
    Part Types Engine Piston
    Departments Parts
    Vehicle Make Ford BB
    Bore Size 4.470
    Crankshaft Stroke 4.300, 4.500
    Rod Length 6.700, 6.800
    Piston Type Flat Top
    Compression Height 1.350
    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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