Part Number:
JE-170672

JE Pistons 170672 Forged Big Duke/Big Chief GP 18° 4.560 Bore

JE Pistons, BBC 555, Bore 4.560, Stroke 4.250, Rod Length 6.385, Dome +13cc, 625 Grams, Set of 8

$1,283.99
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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 specifically designed for Big Duke/Big Chief cylinder heads and feature our race proven dome and skirt design. Valve reliefs are designed to accept oversized valves and long duration, tight lobe separation roller cams. Precision CNC machined ring grooves accept .043 D-wall, 1/16, 3/16 rings.

Includes:
  • Pin #990-2930-15-51S (150g)
  • Forced pin oiler, with annular oil reservoir
  • Double Spiro locks #990-042-CS
  • Vertical gas ports

    Compression Ratio:
  • 82cc 15.1
  • 87cc 14.3
  • 97cc 12.9
    Note: *Oil rail supports included. Made to order.*
  • More Information
    CNC Part Number JE-170672
    Price $1,283.99
    Sold As Set
    Manufacturer's Part Number 170672
    Brands JE
    Part Types Engine Piston
    Departments Parts
    Vehicle Make Chevy BB
    Bore Size 4.560
    Crankshaft Stroke 4.250
    Rod Length 6.385
    Piston Type Dome
    Compression Height 1.270
    Piston Material 2618 Forged
    Piston Ring Size 0.043 D-Wall, 1/16, 3/16
    Wrist Pin Size 0.990
    Custom Notices ⚠ PROP 65 WARNING
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